摘要
本文对7个小麦-簇毛麦易位系种质V9128-1、V9128-3、V9129-1、V3、V4、V5、V12的抗条锈性进行遗传研究。用小麦条锈菌对供试材料苗期接种鉴定表明,7个易位系的抗病谱存在着明显的差异,据基因推导原理和系谱分析,可初步推测这7个易位系所包含的抗条锈基因不尽相同。进而对两个抗病谱较宽的易位系的抗条锈性进行了遗传分析。结果表明:小麦-簇毛麦易位系V9128-1对条锈菌CY30的抗条锈性由一对显性基因控制,小麦-簇毛麦易位系V3对条锈菌CY31的抗条锈基因由一显一隐2对基因控制。揭示了小麦-簇毛麦易位系抗条锈性为寡基因控制,为尽快利用这些宝贵抗病基因,培育小麦抗锈品种提供了科学依据。
The resistance of seven wheat-Haynaldia villosa translocation lines V9128-1, V9128-3, V9129-1, V3, V4, V5 and V12 to yellow rust was identified by inoculated the current epidemic yellow rust races CY29, CY30, CY31, CY32 and Su4, Sull, Sul4. The results showed there were difference resistance genes in the translo- cation lines . Seedlings of V9128-1 ,V3, Mingxian169 and their F1, F2 ,BC1 progeny were tested with Chinese races （CY30 and CY31 ） of Puccinia striiformis f. sp. tritici. The results indicated that single dominant genes determine resistance to race CY30 in V9128-1. One dominant gene and one recessive gene determine resistance to race CY31 in V3. In this paper the result indicated that the Triticum aestivum-Haynaldia villosa translocation lines for resistance to stripe rust is controlled by few genes and it should be useful in breeding resistant cuhivar to stripe rust.
出处
《植物遗传资源学报》
CAS
CSCD
2008年第1期51-54,共4页
Journal of Plant Genetic Resources
基金
教育部长江学者和创新团队发展计划资助(200558)
陕西省科学技术研究计划项目(2005K02-G01-01)
国家“十一五”攻关计划(2006BAD08A05)
关键词
小麦-簇毛麦易位系
小麦条锈菌
遗传分析
Wheat-Haynaldia villosa translocation lines
Puccinia striiformis f.sp.tritici
Genetic analysis
