国家自然科学基金(30971772;30700505);农业部948“分子育种实用化研究项目(2006G2)”;新疆兵团农业科技攻关项目(2006GG04)
抗叶锈病基因鉴定对培育抗病品种非常重要。来自新疆的104个小麦品种、高代品系及35个含有已知抗叶锈基因载体品种,在苗期接种12个中国小麦叶锈菌生理小种进行抗叶锈基因推导分析和分子检测;2007-2008年和2008-2009年连续2年对这些材料进行成株抗叶锈性鉴定并筛选慢叶锈性品种。研究结果显示,在41个品种中共鉴定出6个已知抗叶锈基因Lr26、Lr34、Lr50、Lr3ka、Lr1 和 Lr14a,其中Lr26存在于21个品种中,Lr34在17个品种被发现,Lr1和Lr14a分别存在于3个品种中,还有2个品种携带Lr3ka以及1个品种携带Lr50。两年田间抗叶锈性鉴定筛选出7个慢叶锈性品种,可用于小麦抗病育种。
Identification of leaf rust resistance genes is important for developing leaf rust resistant wheat cultivars. A total of 104 Xinjiang winter wheat cultivars and advanced lines were inoculated with 12 Chinese pathotypes of Puccinia triticina for postulation of leaf rust resistance genes effective at the seedling stage. These genotypes were also planted in the field for characterization of slow rusting responses to leaf rust in the 2007-2008 and 2008-2009 cropping seasons. Six leaf rust resistance genes Lr1, Lr3ka, Lr14a, Lr26, Lr34, and Lr50, either singly or in combinations, were found in 41 genotypes, whereas known resistance genes were not identified in the other 63 accessions. Resistance gene Lr26 was present in 21 accessions. Lr34 was identified in 17 lines. Genes Lr1 and Lr14a were each detected in three entries. Lr3ka was present in two lines and Lr50 may exist in one line. Seven genotypes showed slow leaf rusting resistance in two cropping seasons.
潘 阳,聂迎彬,穆培源,等.新疆的小麦品种(系)苗期和成株期抗叶锈性鉴定[J].植物遗传资源学报,2011,12(2):203-210.
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