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Barley FASCIATED EAR genes determine inflorescence meristem size and yield traits
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作者 Chengyu Wang Xiujunan Yang +9 位作者 Yueya Zhang Chaoqun Shen Jin Shi Chongjing Xia Taohong Fang Qiang Tu Ling Li Xinli Zhou Dabing Zhang Gang Li 《The Crop Journal》 SCIE CSCD 2023年第3期679-691,共13页
In flowering plants,the inflorescence meristem(IM)provides founder cells to form successive floral meristems,which are precursors of fruits and seeds.The activity and developmental progression of IM are thus critical ... In flowering plants,the inflorescence meristem(IM)provides founder cells to form successive floral meristems,which are precursors of fruits and seeds.The activity and developmental progression of IM are thus critical for yield production in seed crops.In some cereals,such as rice(Oryza sativa)and maize(Zea mays),the size of undifferentiated IM,which is located at the inflorescence apex,is positively associated with yield traits such as spikelet number.However,the relationship between IM size and yieldrelated spike traits remains unknown in the Triticeae tribe.Here we report that IM size has a negative correlation with yield traits in barley(Hordeum vulgare).Three FASCIATED EAR(FEA)orthologs,HvFEA2,HvFEA3,and HvFEA4,regulate IM size and spike morphogenesis and ultimately affect yield traits.Three HvFEAs genes are highly expressed in developing spikes,and all three loss-of-function mutants exhibit enlarged IM size,shortened spikes,and reduced spikelet number,which may lead to reduced grain yield.Natural variations identified in HvFEAs indicate selection events during barley domestication.We further reveal that HvFEA4,as a transcription factor,potentially targets multiple pathways during reproductive development,including transcriptional control,phytohormone signaling,and redox status.The roles of barley FEA genes in limiting IM size and promoting spikelet formation suggest the potential of increasing yield by manipulating IM activity. 展开更多
关键词 Inflorescence meristem yield traits FASCIATED EAR genes Gene expression BARLEY
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Heritability of Main Yield Traits in Red-seed Watermelon and Their Correlation Analysis
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作者 Tangjing LIU Siliang LUO +3 位作者 Ke ZHANG Yanhong QIU Wu QIN Suping WU 《Agricultural Biotechnology》 CAS 2023年第3期14-19,共6页
[Objectives]This study was conducted to provide a reliable theoretical basis for the correct formulation of breeding programs for red-seed watermelon and the effective breeding of hybrid offspring.[Methods]With local ... [Objectives]This study was conducted to provide a reliable theoretical basis for the correct formulation of breeding programs for red-seed watermelon and the effective breeding of hybrid offspring.[Methods]With local varieties and inbred lines of red-seed watermelon as test materials,the generalized heritability of fruit number per plant,single-fruit weight,single-fruit seed number,single-fruit seed weight,seed kernel weight,1000-seed weight,kernel-producing ratio,seed production ratio and seed volume were estimated by variance analysis;and the heritability,genetic variation coefficients,and correlation of the nine yield traits in 43 red-seed watermelon varieties were studied.[Results]The generalized heritability of fruit number per plant,single-fruit weight,single-fruit seed number,single-fruit seed weight,seed kernel weight,1000-seed weight,kernel-producing ratio,seed production ratio and seed volume were 12.86%,80.14%,75.96%,74.39%,48.01%,17.12%,24.97%,18.60%,and 37.07%,respectively.The heritability of single-fruit weight,single-fruit seed number and single-fruit seed weight was higher,and early-generation individual selection could achieve a better effect on them;and 1000-seed weight and kernel-producing ratio had a higher coefficient of genetic variation,indicating a high selection potential.[Conclusions]Indirect selection could be achieved for traits such as the single-fruit seed number,single-fruit seed weight,seed kernel weight,and seed volume by selecting the single-fruit weight.In the process of red-seed watermelon breeding,traits with high heritability can be selected in early generations of hybrids,thus playing the role of early-generation orientation. 展开更多
关键词 Red-seed watermelon yield trait HERITABILITY CORRELATION
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Effects of Aphelenchoides besseyi Infection on Yield Traits of Different Rice Varieties (Lines) 被引量:1
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作者 朱镇 于新 +7 位作者 张亚东 陈涛 赵庆勇 周丽慧 姚姝 赵春芳 赵凌 王才林 《Agricultural Science & Technology》 CAS 2016年第5期1173-1176,1180,共5页
[Objective] This study aimed to reveal the effects of Aphelenchoides besseyi infection on different rice varieties(lines).[Method] By field observation and indoor phenotypic investigation,four conventional japonica ... [Objective] This study aimed to reveal the effects of Aphelenchoides besseyi infection on different rice varieties(lines).[Method] By field observation and indoor phenotypic investigation,four conventional japonica rice varieties(lines) and japonica rice restorer line R161 under natural onset conditions were observed and analyzed.[Result] After being infected by A.besseyi,different rice varieties(lines)exhibited various symptoms.Specifically,Ning 1707,Ning 1818,Zhendao 88 and Nanjing 9108 had withered leaf tips and exhibited the symptoms of "small grains and erect panicles";japonica rice restorer line R161 only had withered leaf tips without symptoms of "small grains and erect panicles",and the withering symptoms occurred in flag leaf tip,whole flag leaf and top second leaf,respectively.After being infected by A.besseyi,all the experimental materials could sprout normally,but their plant height,panicle length,seed-setting rate and 1 000-grain weight were affected to varying degrees.In addition,after being infected by A.besseyi,various symptomatic tissues of R161 exerted different effects on rice yield.Especially,panicles with withered and twisted whole flag leaf were most affected.[Conclusion] This study provided the basis for further exploration of the damages of A.besseyi infection to rice and development of corresponding control measures. 展开更多
关键词 Rice(Oryza sativa L.) Aphelenchoides besseyi Small grains and erect panicles yield traits
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Combining Ability Analysis on Yield Traits of Recombinant Inbred Lines in Hybrid Rice
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作者 曹应江 游书梅 +8 位作者 郑家奎 蒋开锋 张涛 杨莉 杨乾华 万先齐 罗婧 李昭祥 高磊 《Agricultural Science & Technology》 CAS 2015年第9期1877-1882,共6页
A population of 140 recombinant inbred lines at F8 generation were obtained after seven successive generations of self-pollination using single seed descent(SSD) method from the F2 hybrids of three-line restorers Lu... A population of 140 recombinant inbred lines at F8 generation were obtained after seven successive generations of self-pollination using single seed descent(SSD) method from the F2 hybrids of three-line restorers Luhui 8258 with high combining ability and Yanghui 34. Then, the 140 inbred lines obtained above and their parents Luhui 8258 and Yanghui 34 were crossed with three different types of cyto-plasmic male sterile(CMS) lines(Gang 46 A, Ⅱ-32 A and Lu 98A) according to NCⅡ design. The resulting 426 combinations were planted at Deyang and Suining bases to test the combining ability and inheritance of five yield traits: yield per plant, panicle number per plant, filled grain number per panicle, seed setting rate and 1 000-grain weight. The results showed that the variances of both general and specific combining abilities of the five traits all reached a significant or extremely significant level at the two sites. The broad and narrow heritability of the yield traits(except 1 000-grain weight whose broad and narrow heritability were both over70%) were all below 50% at the two experimental bases, suggesting that the four traits were easily subjected to environment influence. Very significant positive correlation of general combining ability was found between yield per plant and other traits except 1 000-grain weight. The general combining ability variance showed a normal distribution among the recombinant inbred lines at two sites, right in line with inheritance of quantitative traits. So, the genes controlling rice general combining ability can be targeted by QTL mapping. 展开更多
关键词 Hybrid rice Recombinant inbred lines yield traits Combining ability
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Dissection of QTLs for Yield Traits on the Short Arm of Rice Chromosome 6 被引量:6
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作者 DU Jing-hong FAN Ye-yang WU Ji-rong ZHUANG Jie-yun 《Agricultural Sciences in China》 CAS CSCD 2008年第5期513-520,共8页
This study was undertaken to dissect quantitative trait loci (QTLs) controlling yield traits on the short arm of rice chromosome 6. A residual heterozygous line that carries a heterozygous segment extending from RM5... This study was undertaken to dissect quantitative trait loci (QTLs) controlling yield traits on the short arm of rice chromosome 6. A residual heterozygous line that carries a heterozygous segment extending from RM587 to RM19784 on the short arm of rice chromosome 6 was selected from an F7 population of the indica rice cross Zhenshan 97B/Milyang 46. An F2:3 population consisting of 221 lines was derived and grown in two trial sites. Six yield traits including number of panicles per plant, number of filled grains per panicle, total number of spikelets per panicle, spikelet fertility, 1 000-grain weight, and grain yield per plant were measured. An SSR marker linkage map was constructed and employed to determine QTLs for yield traits with Windows QTL Cartographer 2.5. QTLs were detected in the target interval for all the traits analyzed except NP, with phenotypic variance explained by a single QTL ranging between 6.3% and 35.2%. Most of the QTLs for yield components acted as additive QTLs, while the three QTLs for grain yield had dominance degrees of 1.65, 0.84, and -0.42, respectively. It was indicated that three or more QTLs for yield traits were located in the target region. The genetic action mode, the direction of the QTL effect, and the magnitude of the QTL effect varied among different QTLs for a given trait, and among QTLs for different traits that were located in the same interval. 展开更多
关键词 yield traits residual heterozygous line quantitative trait locus short arm of chromosome 6 rice (Oryza sativa L.)
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Quantitative Trait Loci for Heading Date and Their Relationship with Genetic Control of Yield Traits in Rice (Oryza sativa) 被引量:4
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作者 GUO Liang ZHANG Zhen-hua ZHUANG Jie-yun 《Rice science》 SCIE 2013年第1期1-12,共12页
Grain yield and heading date are key factors determining the commercial potential of a rice variety. Mapping of quantitative trait loci (QTLs) in rice has been advanced from primary mapping to gene cloning, and head... Grain yield and heading date are key factors determining the commercial potential of a rice variety. Mapping of quantitative trait loci (QTLs) in rice has been advanced from primary mapping to gene cloning, and heading date and yield traits have always attracted the greatest attention. In this review, genomic distribution of QTLs for heading date detected in populations derived from intra-specific crosses of Asian cultivated rice (Oryza sativa) was summarized, and their relationship with the genetic control of yield traits was analyzed. The information could be useful in the identification of QTLs for heading date and yield traits that are promising for the improvement of rice varieties. 展开更多
关键词 RICE heading date yield traits quantitative trait locus GENE
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Genetic architecture of maize yield traits dissected by QTL mapping and GWAS in maize 被引量:2
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作者 Xiao Zhang Zhiyong Ren +15 位作者 Bowen Luo Haixu Zhong Peng Ma Hongkai Zhang Hongmei Hu Yikai Wang Haiying Zhang Dan Liu Ling Wu Zhi Nie Yonghui Zhu Wenzhu He Suzhi Zhang Shunzong Su Yaou Shen Shibin Gao 《The Crop Journal》 SCIE CSCD 2022年第2期436-446,共11页
The study of yield traits can reveal the genetic architecture of grain yield for improving maize production.In this study, an association panel comprising 362 inbred lines and a recombinant inbred line population deri... The study of yield traits can reveal the genetic architecture of grain yield for improving maize production.In this study, an association panel comprising 362 inbred lines and a recombinant inbred line population derived from X178 × 9782 were used to identify candidate genes for nine yield traits. High-priority overlap(HPO) genes, which are genes prioritized in a genome-wide association study(GWAS), were investigated using coexpression networks. The GWAS identified 51 environmentally stable SNPs in two environments and 36 pleiotropic SNPs, including three SNPs with both attributes. Seven hotspots containing 41 trait-associated SNPs were identified on six chromosomes by permutation. Pyramiding of superior alleles showed a highly positive effect on all traits, and the phenotypic values of ear diameter and ear weight consistently corresponded with the number of superior alleles in tropical and temperate germplasm. A total of 61 HPO genes were detected after trait-associated SNPs were combined with the coexpression networks. Linkage mapping identified 16 environmentally stable and 16 pleiotropic QTL.Seven SNPs that were located in QTL intervals were assigned as consensus SNPs for the yield traits.Among the candidate genes predicted by our study, some genes were confirmed to function in seed development. The gene Zm00001 d016656 encoding a serine/threonine protein kinase was associated with five different traits across multiple environments. Some genes were uniquely expressed in specific tissues and at certain stages of seed development. These findings will provide genetic information and resources for molecular breeding of maize grain yield. 展开更多
关键词 MAIZE yield traits Genome-wide association study(GWAS) Quantitative trait locus(QTL) Coexpression networks
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Dissection of QTLs for Yield Traits Using Near Isogenic Lines Derived from Residual Heterozygous Lines in Rice 被引量:1
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作者 Jing-hong DU Ye-yang FAN +1 位作者 Lei WANG Jie-yun ZHUANG 《Rice science》 SCIE 2008年第4期259-266,共8页
Three residual heterozygous lines (RHLs) carrying heterozygous segments in the intervals RM587–RM225, RM204–RM6119 and RM6119–RM402 on the short arm of rice chromosome 6, respectively, were selected from a rice pop... Three residual heterozygous lines (RHLs) carrying heterozygous segments in the intervals RM587–RM225, RM204–RM6119 and RM6119–RM402 on the short arm of rice chromosome 6, respectively, were selected from a rice population derived from an RHL for the interval RM587–RM402. Ten maternal homozygotes, 10 paternal homozygotes and 20 heterozygotes were selected from each of the F2 populations derived from the three RHLs. The three sets of near isogenic lines (NILs) were grown to detect the grain yield per plant, number of panicles per plant, number of filled grains per panicle and 1000-grain weight. With analysis on the phenotypic differences among the three genotype groups in each NIL set and those among overlapping chromosome segment substitution lines, three QTLs for number of filled grains per panicle and two QTLs for grain yield per plant were resolved. They were located in the intervals ranging from 0.66 Mb to 2.49 Mb. The additive effect was higher than the dominance effect at each locus. The allele for increasing the trait value was derived from the paternal parent at qNFGP6-1, and from the maternal alleles at other QTLs. Based on the present study, an approach for constructing new genetic resource to facilitate fine mapping of QTLs in rice was proposed. 展开更多
关键词 residual heterozygous line near isogenic line quantitative trait locus yield traits rice (Oryza sativa)
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Quantitative Trait Locus Analysis for Rice Yield Traits under Two Nitrogen Levels 被引量:2
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作者 FENG Yue ZHAI Rong-rong +3 位作者 LIN Ze-chuan CAO Li-yong WEI Xing-hua CHENG Shi-hua 《Rice science》 SCIE CSCD 2015年第3期108-115,共8页
A recombinant inbred line population derived from a super hybrid rice Xieyou 9308(Xieqingzao B/Zhonghui 9308) and its genetic linkage map were used to detect quantitative trait loci(QTLs) for rice yield traits und... A recombinant inbred line population derived from a super hybrid rice Xieyou 9308(Xieqingzao B/Zhonghui 9308) and its genetic linkage map were used to detect quantitative trait loci(QTLs) for rice yield traits under the low and normal nitrogen(N) levels. A total of 52 QTLs for yield traits distributed in 27 regions on 9 chromosomes were detected, with each QTL explaining 4.93%–26.73% of the phenotypic variation. Eleven QTLs were simultaneously detected under the two levels, and 30 different QTLs were detected under the two N levels, thereby suggesting that the genetic bases controlling rice growth under the low and normal N levels were different. QTLs for number of panicles per plant, number of spikelets per panicle, number of filled grains per panicle, and grain density per panicle under the two N levels were detected in the RM135–RM168 interval on chromosome 3. QTLs for number of spikelets per panicle and number of filled grains per panicle under the two N levels, as well as number of panicles per plant and grain density per panicle, under the low N level, were detected in the RM5556–RM310 interval on chromosome 8. The above described QTLs shared similar regions with previously reported QTLs for rice N recycling. 展开更多
关键词 nitrogen quantitative trait locus rice yield trait
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Relationships of Panicle Type Index with Subspecies Characteristics and Yield Traits in Filial Generation of Crosses between Indica and Japonica Rice
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作者 Xu Hai ZHU Chun-jie +7 位作者 Guo Yan-hua Xu Quan MAO Ting CHEN Kai WANG Jia-yu YANG Li ZHENG Jia-kui Xu Zheng-jin 《Rice science》 SCIE 2010年第2期149-155,共7页
Two recombinant inbred line (RIL) populations, one derived from a cross between Zhongyouzao 8 (indica) and Toyonishiki (japonica) and the other from a cross between Qishanzhan (indica) and Akihikari (japonica... Two recombinant inbred line (RIL) populations, one derived from a cross between Zhongyouzao 8 (indica) and Toyonishiki (japonica) and the other from a cross between Qishanzhan (indica) and Akihikari (japonica), were grown in Liaoning and Sichuan Provinces, China, to study the panicle type index (PTI, the ratio of a number of node position on panicle axis where the secondary branch with the most numerous secondary branch grains is located to the number of primary branches) and its relationships with subspecies characteristics and yield traits. With continuous distribution of PTI and numerous of lines with different PTIs in the progenies, indica-japonica hybridization could be a method for breeding cultivars with ideal panicle type. PTI was significantly influenced by environments, with a significant decrease from Liaoning to Sichuan A significantly negative correlation was found between PTI and most of subspecies characteristics. PTI varied remarkably with different subspecies types. As a whole, it showed a trend of indica (H)〉indicalinous (H')〉japonicalinous (K')〉japonica (K) However, it is not appropriate to regard PTI as a parameter for subspecies classification in rice because it was recombined in the filial generations of cross between indica and japonica rice. The negative correlations were found between PTI and most of panicle characteristics, as well as yield-related traits. Based on PTI, most of lines from the two populations were middle dominant panicle type (the number of grains on the secondary branch is numerous in middle position of the panicle) and lower dominant panicle type (the number of grains on the secondary branch is numerous in lower position of the panicle and becomes less towards the top of panicle) with significant yield advantages. 展开更多
关键词 RICE indica-japonica hybridization panicle type index subspecies characteristics yield trait RELATIONSHIP
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QTL Mapping and Epistasis Analysis for Yield Traits in an RIL Population of Rice(Oryza sativa L.)
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作者 CAO Li-yong, ZHAN Xiao-deng, ZHUANG Jie-yun, ZHENG Kang-le and CHENG Shi-hua(National Center for Rice Improvement, China National Rice Research Institute, Hangzhou 310006 , P. R. China) 《Agricultural Sciences in China》 CAS CSCD 2003年第11期1179-1186,共8页
A genetic linkage map consisting of 168 DNA markers was constructed based on a recombinant inbred line(RID population derived from a cross between a high yielding indica variety, Zhong156, and a low yielding indica va... A genetic linkage map consisting of 168 DNA markers was constructed based on a recombinant inbred line(RID population derived from a cross between a high yielding indica variety, Zhong156, and a low yielding indica variety, Gumeil. The markers on the linkage map were distributed on all 12 chromosomes and covered 1 447. 9 cM of the genome. The parents and 304 RILs were grown in China National Rice Research Institute(CNRRI), Hangzhou, China, in 2001, over two seasons in a randomized block design. The statistic software of QTL Mapper 1.01 was applied to detect quantitative trait loci(QTLs)and additive by environment(AE)interactions for yield traits, including panicle length, number of panicles per plant, number of spikelets per panicle, number of filled grains per panicle, fertility and kilo-grain weight. A total of 30 QTLs with significant additive effects located on all chromosomes, except chromosomes 5 and 9, and two QTLs with significant AE interactions, were detected. Thirty-one interactions of QTLs showing significant additive by additive epistatic effects for yield traits were also detected. Genetic contributions were generally lower for QTLs showing epistatic effects compared with QTLs showing additive effects. No significant interactions between epistasis and environment were detected. 展开更多
关键词 yield traits QTLS Additive effect EPISTASIS Oryza sativa L.
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Quantitative Trait Loci for Yield Traits Located Between Hd3a and Hd1 on Short Arm of Chromosome 6 in Rice
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作者 Ye-yang FAN Chen CHEN +2 位作者 Ji-rong WU Shi-hua CHENG Jie-yun ZHUANG 《Rice science》 SCIE 2011年第4期257-264,共8页
QTLs for heading date located in the regions of Hd3a and Hd1 were detected using an F2:3 population developed from a residual heterozygous line(RHL) identified from the recombinant inbred lines of the indica rice cros... QTLs for heading date located in the regions of Hd3a and Hd1 were detected using an F2:3 population developed from a residual heterozygous line(RHL) identified from the recombinant inbred lines of the indica rice cross Zhenshan 97B /Milyang 46.Linkage in coupling phase between the QTLs for heading date and yield traits detected in a previous study was found.Four more F2:3 populations were each developed from an RHL that was homozygous at Hd3a and Hd1 but heterozygous in a portion of the intervals flanked by Hd3a and Hd1.QTLs for grain yield per plant,number of panicles per plant,number of grains per panicle and 1000-grain weight were detected in the heterozygous region.Five sets of near-isogenic lines(NILs) with overlapping heterogenous segments covering the interval RM6119-RM6779 were developed and used to validate and delimitate the QTLs.A QTL conferring a consistent effect for the number of grains per panicle was located within the interval RM19615-RM19652 that corresponded to a 514.4-kb region on chromosome 6.The same region might have pleiotropic effects on the other three yield-related traits analyzed,but the effects varied greatly among different populations and across different environments.This study suggests that it is possible to develop a population with little variation on heading date and to identify QTLs for yield traits that might not be associated with heading date by using the information of physical positions of DNA markers and cloned genes. 展开更多
关键词 RICE yield trait heading date quantitative trait locus residual heterozygous line
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Relationship Between Heterosis and Parental Genetic Distance Based on Molecular Markers for Functional Genes Related to Yield Traits in Rice 被引量:7
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作者 ZHANG Tao NI Xian-lin +7 位作者 JIANG Kai-feng DENG Hua-feng HE Qing YANG Qian-hua YANG Li WAN Xian-Qi CAO Ying-jiang ZHENG Jia-kui 《Rice science》 SCIE 2010年第4期288-295,共8页
The genetic distances among 18 cytoplasmic male sterile lines and 11 restorer lines were analyzed with molecular markers derived from yield-related functional genes. The correlation between parental genetic distance a... The genetic distances among 18 cytoplasmic male sterile lines and 11 restorer lines were analyzed with molecular markers derived from yield-related functional genes. The correlation between parental genetic distance and heterosis was investigated by analyzing the performance of 47 combinations. The results showed that the genetic distance was significantly correlated with yield heterosis (r=0.29^*), but not significantly correlated with heterosis for other traits, such as number of effective panicles per plant, seed setting rate, 1000-grain weight, number of grains per panicle and theoretical yield. However, the correlation coefficient was so small that the parental genetic distance could not to be used to predict heterosis. 展开更多
关键词 RICE yield related traits simple sequence repeats genetic distance HETEROSIS correlation
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Characterization and mapping of QTLs on chromosome 2D for grain size and yield traits using a mutant line induced by EMS in wheat 被引量:7
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作者 Guizhi Zhang Yingying Wang +3 位作者 Ying Guo Yan Zhao Fanmei Kong Sishen Li 《The Crop Journal》 SCIE CAS CSCD 2015年第2期135-144,共10页
Production of mutants with altered phenotypes is a powerful approach for determining the biological functions of genes in an organism. In this study, a high-grain-weight mutant line M8008 was identified from a library... Production of mutants with altered phenotypes is a powerful approach for determining the biological functions of genes in an organism. In this study, a high-grain-weight mutant line M8008 was identified from a library of mutants of the common wheat cultivar YN15 treated with ethylmethane sulfonate(EMS). F2 and F2:3generations produced from crosses of M8008 × YN15(MY) and M8008 × SJZ54(MS) were used for genetic analysis. There were significant differences between M8008 and YN15 in plant height(PH), spike length(SL),fertile spikelet number per spike(FSS), grain width(GW), grain length(GL), GL/GW ratio(GLW), and thousand-grain weight(TGW). Most simple correlation coefficients were significant for the investigated traits, suggesting that the correlative mutations occurred in M8008. Approximately 21% of simple sequence repeat(SSR) markers showed polymorphisms between M8008 and YN15, indicating that EMS can induce a large number of mutated loci. Twelve quantitative trait loci(QTLs) forming QTL clusters(one in MY and two in MS) were detected. The QTL clusters coinciding with(MY population) or near(MS population) the marker wmc41 were associated mainly with grain-size traits, among which the M8008 locus led to decreases in GW, factor form density(FFD), and TGW and to increases in GLW. The cluster in the wmc25–barc168 interval in the MS population was associated with yield traits, for which the M8008 locus led to decreased PH, spike number per plant(SN), and SL. 展开更多
关键词 Common WHEAT MUTANT Simple sequence repeat(SSR) Quantitative trait locus(QTL) Grain size trait yield trait
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Genome-Wide Analysis for Yield-Related Agronomic and Biochemical Traits of Chinese and Bangladeshi Grass Pea Genotypes Using SSR Markers
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作者 Md.Mosiur Rahman Md.Ruhul Quddus +15 位作者 Quanle Xu Muhammad Malek Hossain Rong Liu Mengwei Li Xin Yan Guan Li Yishan Ji Chenyu Wang Ashutosh Sarker Tao Yang Xuxiao Zong Md.Monoar Hossain Saleh Alfarraj Mohammad Javed Ansari Sagar Maitra Akbar Hossain 《Phyton-International Journal of Experimental Botany》 SCIE 2024年第8期1781-1804,共24页
Grass pea(Lathyrus sativus L.)is an imperative food crop cultured in dryland agricultural ecology.It is a vital source of dietary protein to millions of populaces living in low-income countries in South-East Asia and ... Grass pea(Lathyrus sativus L.)is an imperative food crop cultured in dryland agricultural ecology.It is a vital source of dietary protein to millions of populaces living in low-income countries in South-East Asia and Africa.This study highlights the improvement of genomic properties and their application in marker-trait relationships for 17 yield-related characters in 400 grass pea genotypes from China and Bangladesh.These characters were assessed via 56 polymorphic markers using general linear model(GLM)(P+G+Q)and mixed linear model(MLM)(P+G+Q+K)in the tassel software based on the linkage disequilibrium and population structure analysis.Population structure analysis showed two major groups and one admixed group in the populace.Statistically significant loci pairs of linkage disequilibrium(LD)mean value(D′)was 0.479.A total of 99 and 61 marker-trait associations in GLM and MLM models allied to the 17 traits were accepted at a 5%level of significance.Among these markers,21 markers were associated with more than one trait;12 marker-trait associations passed the Bonferroni correction threshold.Both models found six markers C41936,C39067,C34100,C47146,C47638,and C43047 significantly associated with days to maturity,flower color,plant height,and seed per pod were detected in the Hebei and Liaoyang location(p≤0.01),and the interpretation rate(R^(2)value)11.2%to 43.6%.Conferring to the consequences,the association analysis methodology may operative system for quantitative,qualitative,and biochemical traits related to gene position mapping and support breeders in improving novel approaches for advancing the grass pea quality. 展开更多
关键词 Grass pea dryland agriculture genome-wide association yield contributing traits SSR markers
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Auxin signaling module OsSK41-OsIAA10-OsARF regulates grain yield traits in rice 被引量:1
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作者 Fuying Ma Fan Zhang +18 位作者 Yu Zhu Dengyong Lan Peiwen Yan Ying Wang Zejun Hu Xinwei Zhang Jian Hu Fuan Niu Mingyu Liu Shicong He Jinhao Cui Xinyu Yuan Ying Yan Shujun Wu Liming Cao Hongwu Bian Jinshui Yang Zhikang Li Xiaojin Luo 《Journal of Integrative Plant Biology》 SCIE CAS CSCD 2023年第7期1753-1766,共14页
Auxin is an important phytohormone in plants, and auxin signaling pathways in rice play key roles in regulating its growth, development, and productivity. To investigate how rice grain yield traits are regulated by au... Auxin is an important phytohormone in plants, and auxin signaling pathways in rice play key roles in regulating its growth, development, and productivity. To investigate how rice grain yield traits are regulated by auxin signaling pathways and to facilitate their application in rice improvement, we validated the functional relationships among regulatory genes such as OsIAA10, OsSK41, and OsARF21 that are involved in one of the auxin(OsIAA10) signaling pathways. We assessed the phenotypic effects of these genes on several grain yield traits across two environments using knockout and/or overexpression transgenic lines.Based on the results, we constructed a model that showed how grain yield traits were regulated by OsIAA10 and OsTIR1, OsAFB2, and OsSK41 and OsmiR393 in the OsSK41-OsIAA10-OsARF module and by OsARF21 in the transcriptional regulation of downstream auxin response genes in the OsSK41-OsIAA10-OsARF module. The population genomic analyses revealed rich genetic diversity and the presence of major functional alleles at most of these loci in rice populations. The strong differentiation of many major alleles between Xian/indica and Geng/japonica subspecies and/or among modern varieties and landraces suggested that they contributed to improved productivity during evolution and breeding. We identified several important aspects associated with the genetic and molecular bases of rice grain and yield traits that were regulated by auxin signaling pathways.We also suggested rice auxin response factor(OsARF) activators as candidate target genes for improving specific target traits by overexpression and/or editing subspecies-specific alleles and by searching and pyramiding the ‘best' gene allelic combinations at multiple regulatory genes in auxin signaling pathways in rice breeding programs. 展开更多
关键词 allele evolution auxin signaling pathways OsARFs OsIAA10 yield traits
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Correlation and variability analysis of yield and quality related traits in different peanut varieties across various ecological zones of China 被引量:1
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作者 Zhihui Wang Yue Zhang +8 位作者 Liying Yan Yuning Chen Yanping Kang Dongxin Huai Xin Wang Kede Liu Huifang Jiang Yong Lei Boshou Liao 《Oil Crop Science》 CSCD 2023年第4期236-242,共7页
Peanut cultivation in China spans various ecological zones, each with unique environmental conditions. Identifying suitable peanut varieties for these regions has been challenging due to significant phenotypic variati... Peanut cultivation in China spans various ecological zones, each with unique environmental conditions. Identifying suitable peanut varieties for these regions has been challenging due to significant phenotypic variations observed across environments. This study, based on a comprehensive analysis of 256 peanut varieties, selected nine representative varieties(Huayu23, Yuanza9102, Silihong, Wanhua2, Zhonghua6, Zhonghua16, Zhonghua21,Zhonghua215, Zhonghua24) for cultivation in five distinct ecological zones including Chengdu, Hefei, Nanjing,Shijiazhuang, and Wuhan. The yield and quality related phenotypic traits of these varieties were thoroughly assessed, revealing a complex interplay between genetic and environmental factors. Principal component analysis(PCA) effectively distinguished varieties based on yield and quality traits. Strong correlations were observed between specific traits, such as seed size and quality components. The G × E interaction was evident, as some varieties consistently performed better in certain environments. Varieties with lower coefficient of variation(CV)values exhibited stable trait expression, making them reliable choices for broad cultivation. In contrast, varieties with higher CV values displayed greater sensitivity to environmental fluctuations, potentially due to specific genetic factors. Two high oleic acid varieties, Zhonghua24 and Zhonghua215, demonstrated remarkable stability in oleic acid content across diverse environments, suggesting the presence of genetic mechanisms that buffer against environmental variations. Overall, this study underscores the importance of selecting peanut varieties based on their adaptability and performance in specific ecological zones. These findings provide valuable insights for peanut breeders and farmers, facilitating informed decisions for improved crop production and quality. 展开更多
关键词 PEANUT yield trait Quality trait Correlation analysis Variability analysis
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Analysis of Yield and Disease Resistance Traits of New Winter Rapeseed Varieties over the Past Twenty Years in China 被引量:8
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作者 祝利霞 张冬晓 +2 位作者 傅廷栋 沈金雄 文静 《Agricultural Science & Technology》 CAS 2011年第6期842-846,共5页
Based on the results of the national regional trail for winter rapeseed in four groups,including the upper reaches,middle reaches and lower reaches of Yangtze River and Huang-Huai region in the past twenty years,new v... Based on the results of the national regional trail for winter rapeseed in four groups,including the upper reaches,middle reaches and lower reaches of Yangtze River and Huang-Huai region in the past twenty years,new varieties of winter rapeseed showed upward trend in average yield,the yield level in Huang-huai group was higher than other groups.The changes of average effective pods per plant were not significant in any group,but the number of grain per pod and 1 000-grain weight showed increase trend.However,the increment of grains per pod in three Yangtze River groups was higher than that in Huang-Huai River group,while the increment of 1 000-grain weight was just opposite.The incidence rate of Sclerotinia sclerotiorum and viral disease in new varieties of winter rapeseed obviously decreased,and the incidence rate of S.sclerotiorum decreased lower than 5%.Genetic improvement for winter rapeseed should be focus on the number of grain per pod and 1 000-grain weight in the future,and yield level of new varieties in all four groups is expected to increase. 展开更多
关键词 Winter rapeseed New variety yield trait Disease resistance trait
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Effect of Different Mulch Materials on Yield and Nutrition Profile of Common Capsicum (Capsicum annuum) Cultivars in Bangladesh
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作者 Prince Biswas Md. Abubakar Siddik +5 位作者 Md. Shariful Islam Mohammad Zahir Ullah Md. Shamsuzzoha Hasina Akter Akm Maksudul Alam Mominul Hauque Robin 《Agricultural Sciences》 2024年第2期246-255,共10页
Capsicum is a nutritious vegetable and its cultivation in farms is getting popular in Bangladesh. Although many efforts have lain to explore better yielding and nutritionally rich cultivars with suitable modern cultiv... Capsicum is a nutritious vegetable and its cultivation in farms is getting popular in Bangladesh. Although many efforts have lain to explore better yielding and nutritionally rich cultivars with suitable modern cultivation techniques but still have to find the desired outcome. Thus, it’s necessary to conduct further research to identify the high-yielding and nutritious capsicum cultivars in Bangladesh. An experiment was conducted from July 2021 to June 2022 at the Bangladesh Institute of Research and Training on Applied Nutrition (BIRTAN) research field with three cultivars of capsicum: B<sub>0</sub> = California Wonder, B<sub>1</sub> = BARI Misti Morich-1 and B<sub>2</sub> = BARI Misti Morich-2 and three mulching: T<sub>0</sub> = No mulching, T<sub>1</sub> = Water hyacinth, T<sub>2</sub> = Poly Mulching in randomized complete block design with three replications to identify better quality capsicum cultivar and suitable mulching material. Among cultivars the BARI Misti Morich-2 (B<sub>2</sub>) showed increased agronomic parameters like number of branches and effective branches per plant, leaves length and width, consequently yield and yield contributing traits were also enhanced like fruits per plant, fruit length, fruit diameter and yield per plant (25.97%, 4.54%, 3.64% and 21.43%, respectively). Poly Mulching (T<sub>2</sub>) increased agronomic traits, yield traits and yield (0.61 kg) than BARI Misti Morich-1 (T<sub>1</sub>). The combined effect of B<sub>2</sub>T<sub>2</sub> increased the number of branches per plant, effective branches per plant, leaves length and breadth by 40%, 90%, 15.57% and 26.22%, respectively, hence resulting in an increased yield of 20%. BARI Misti Morich-2 cultivar showed an increase in Fe, Zn and Vitamin-C content of 26.24% and 23.10%, 8.82% and 5.14%, and 6.03% and 5.74% than B0 and B1 cultivars, respectively. Therefore, BARI Misti Morich-2 exhibited the improved agronomic, yield and nutritional traits of capsicum under poly mulching among other cultivars in Bangladesh. 展开更多
关键词 Capsicum Cultivars Mulch Materials yield yield Contributing traits Nutritional Quality
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The Principal Component Analysis on Yielding and Agronomic Traits of Hybrid Rice of Liangyou 2111 被引量:5
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作者 吕宏斌 钱敏 +9 位作者 李朝华 徐加万 丁明亮 刘宏珺 梅新彪 王海德 陈良 黄洁 杨林仙 李政芳 《Agricultural Science & Technology》 CAS 2017年第3期483-486,共4页
In order to define the relationship between yield and important agronomic traits of two lines hybrid Uangyou 2111, the principal component analysis method was used to analyze the expadmental data of six test points in... In order to define the relationship between yield and important agronomic traits of two lines hybrid Uangyou 2111, the principal component analysis method was used to analyze the expadmental data of six test points in Yunnan Province. The results showed that the main factors influencing the production of Liangyou 2111 were grain number, grains seed number, panicle length, growth padod and panicle rate; then were 1 O00-grain weight, seed setting rate, effective panicle and highest stem tillers number; again was plant height. Therefore, when hybrid rice of Uangyou 2111 will be planted widely in yunnan province, we should focus on en- sudng the panicle traits, especially increase grain number and grain seed number, and coordinately develop other traits to achieve high yield. 展开更多
关键词 RICE Two "lines hybrid of Liangyou 2111 yielding traits Principal com-ponent analysis
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