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四川省常规小麦品种抗条锈基因推导初报
引用本文:夏先全,姚革,刘正德,牛永春.四川省常规小麦品种抗条锈基因推导初报[J].西南农业学报,2005,18(4):422-426.
作者姓名:夏先全  姚革  刘正德  牛永春
作者单位:1. 四川省农科院植保所,四川,成都,610066
2. 中国农科院植保所,北京,100000
基金项目:四川省育种攻关项目(9600011-7-4)
摘    要:根据对已知毒性基因的26个不同毒性谱小麦条锈菌的反应,结合系谱分析,研究了四川省32个常规小麦品种所具有的抗条锈基因。结果表明,在已知的抗条锈基因中,Yr2所占比例最大,至少存在于川麦29等7个品种中,Yr9次之,存在于绵农5号等4个品种中,个别品种则具有YrA、Yr Sel或Yr 15,还有些品种可能具有未知的抗条锈基因或基因组合,但没有一个品种能够抵抗所有供试的26个条锈菌菌系,培育和推广具有有效抗条锈基因的新品种迫在眉睫。

关 键 词:小麦  条锈菌  品种抗病性  基因推导
文章编号:1001-4829(2005)04-0422-05
收稿时间:2005-01-13
修稿时间:2005-01-13

Postulation of resistance genes to stripe rust in common wheat cultivars from Sichuan province
XIA Xian-quan,YAO Ge,LIU Zheng-de,NIU Yong-chun.Postulation of resistance genes to stripe rust in common wheat cultivars from Sichuan province[J].Southwest China Journal of Agricultural Sciences,2005,18(4):422-426.
Authors:XIA Xian-quan  YAO Ge  LIU Zheng-de  NIU Yong-chun
Abstract:Seedlings of 32 common wheat cultivars from Sichuan province were inoculated with 26 selected different isolates of Puccinia striiformis to postulate stripe rust resistance genes.The results indicated that Yr 2 presented in at least 7 cultivars, Yr 9 in 4 cultivars, Yr A, Yr Sel or Yr 15 in individual cultivars and unknown resistance gene combinations in other cultivars. The data also indicated that none of the cultivars was resistant to all the 26 isolatea.
Keywords:wheat  stripe rust  Puccinia striiformis  cultivars resistance  gene postulation
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