黑龙江省青年基金项目(2007Q0291-00)
YAV-2/TEZ//A.SQ(895)是硬粒小麦(Triticum. durum Desf.) 与粗山羊草(Aegilops tauschii L.)杂交获得的抗白粉病人工合成小麦。本研究利用人工合成小麦YAV-2/TEZ//A.SQ(895)与感白粉病的普通小麦品系品资50098杂交和自交获得的F2代群体及F3家系,在温室条件下鉴定群体的白粉病抗性。遗传分析结果表明,该抗白粉病基因为显性单基因遗传。利用647对小麦SSR引物进行了白粉病抗性基因的分子标记分析,结果表明该白粉病抗性基因与2A染色体的6个SSR标记连锁,与标记Xcfa2086的遗传距离最近,为11.8cM。
YAV-2/TEZ//A.SQ(895) is a synthetic hexaploid wheat derived from a cross between T. durum Desf. and T. tauschii L., which is immune to powdery mildew. Genetic analysis of resistance to powdery mildew in F2 population and the F3 derived lines of YAV-2/TEZ//A.SQ(895)/3/Pinzi 50098 indicated a single dominant gene controlled the resistance. By bulk segregation analysis, microsatellite marker Xcfa2086 was identified to be closely linked to the resistance gene with genetic distance of 11.8cM. Based on the location of the linked microsatellite markers, the resistance gene was located on the telomeric region of chromosome 2AL in synthetic hexaploid wheat.
赵远玲,李祥羽,孙连发,等.人工合成小麦抗白粉病未知基因的SSR标记[J].植物遗传资源学报,2011,12(2):271-274.
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