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一个水稻脆性突变体的遗传分析与基因定位 被引量：17

GENETIC ANALYSIS AND GENE MAPPING OF A FRAGILE RICE MUTANT
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摘要 化学诱变处理籼稻品种E532,M3代中筛选出茎、叶均较脆的突变体,定名fr(fragile rice)。遗传分析表明,该脆性突变体受两对隐性基因叠加控制。以fr突变体与粳稻02428杂交的F2代群体为基因定位群体,利用SSR分子标记将fr突变位点分别定位在1号染色体上的SSR标记RM302和RM212外侧,遗传距离分别为11.89cm和15.19cm;7号染色体在RM11和RM234之间,遗传距离分别为9.36cm和10.01cm。这些结果为进一步研究脆性突变体及其基因精细定位打下基础。 A fragile mutant flee （fr） obtained from M3 population of E532 （Oryza sativa L） by chemical inducement. Genetic analysis showed that the character of ＂fr＂ was controlled by two recessive genes. SSR marker RM302 and RM212, RMlland RM234 were found linked to the fragile genes in fragile rice. The genes were located on the first and seventh chromosome in rice, and theirs heredity distance to RM302 was 11.89cm, RM212 15.19cm, and to RM 11 was 9.36cm, RM234 0.01cm.
作者 李文丽 吴先军
机构地区 临沂师范学院生命科学学院 四川农业大学水稻研究所
出处 《核农学报》 CAS CSCD 北大核心 2006年第6期500-502,共3页 Journal of Nuclear Agricultural Sciences
关键词 水稻 脆性突变体 遗传分析 基因定位 rice fragile rice genetic analysis gene mapping
分类号 S511 [农业科学—作物学]
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参考文献14

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共引文献45

同被引文献178

引证文献17

二级引证文献47

核农学报
2006年 第6期

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