美国西北部59个小麦品种(系)抗条锈病基因分子检测及对中国条锈菌系抗性鉴定

被引:15
作者
白玉路 [1 ,2 ]
孙权 [1 ]
张春宇 [1 ]
崔娜 [1 ]
林凤 [1 ]
徐世昌 [2 ]
章振羽 [3 ]
高阳 [1 ]
徐晓丹 [1 ]
机构
[1] 沈阳农业大学生物科学技术学院
[2] 中国农业科学院植物保护研究所/植物病虫害生物学国家重点实验室
[3] 四川省农业科学院植物保护研究所
关键词
美国小麦; 小麦条锈病; 分子标记; 抗性鉴定;
D O I
暂无
中图分类号
S512.1 [小麦];
学科分类号
摘要
【目的】了解59份美国西北部小麦品种(系)对中国当前条锈菌流行小种的抗性水平,分析其抗病基因的存在情况,为培育中国抗条锈病新品种提供资源和依据。【方法】选用中国小麦条锈菌优势小种条中31号、条中32号和条中33号对大部分具有高温成株抗性的美国59份小麦品种(系)苗期及成株期进行抗性接种鉴定,利用与当前有效的全生育期抗性基因Yr10、Yr15、成株抗性基因Yr18、高温成株抗性基因Yr39紧密连锁的分子标记对供试材料进行分子检测。【结果】抗性鉴定表明,Expresso、02W50076、ACS52610、WA008012、WA008018等5份材料苗期与成株期对条中31号、条中32号和条中33号混合菌均表现为抗病,属于全生育期抗病品种。33份材料苗期表现感病而成株期表现抗病,属于成株期抗病品种。分子检测发现59份材料均不含有Yr10;含有Yr15、Yr18和Yr39的材料分别为12、33和29份,占20%、56%和49%。【结论】Yr18、Yr39在美国西北部小麦品(系)中的分布较普遍,并且大部分可以抵抗中国当前流行的条锈菌生理小种,可应用这些抗性材料配制中国小麦抗条锈病新品种。
引用
收藏
页码:1147 / 1155
页数:9
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