小麦光温敏核雄性不育基因的初步定位

Preliminary Gene-mapping of Photoperiod-temperature Sensitive Genic Male Sterility in Wheat (Triticum aestivum L.)

农大 3 3 3 8是通过多年鉴定发现的一个优良的光温敏核雄性不育小麦品系 ,运用SSR和ISSR两种分子标记对其光温敏核雄性不育基因进行了定位 ,检测到了两个光温敏核雄性不育基因座位 ,并分别命名为ptms1和pt ms2 ,其中ptms1的基因效应是ptms2的 2～

The photoperiod-temperature sensitive genic male sterile (PTSGMS) line in wheat is important for the utilization of heterosis.The wheat line,BAU3338,is an excellent PTSGMS material identified in the recent years.In this study,its PTSGMS genes were mapped using molecular markers,SSR and ISSR.The result of molecular analysis showed that the two PTSGMS loci were identified and designated as ptms1 and ptms2,respectively.In addition,the genetic effect analysis indicated that the locus effect of ptms1 was 2～3 times larger than that of ptms2.