青海高原特色冷凉作物优异种质创新与利用(2013BAD01B05-3),科技部(科技支撑计划)
本研究利用Rht-B1b、Rht-D1b、Rht8等特异性标记对82份青海小麦品种中的主效矮源基因进行了检测以便了解青海省小麦主效矮源基因的分布特点和分布规律。结果表明:82份供试材料有50个材料含有矮杆基因,约占总材料的60%。其中Rht-B1b的分布频率最高约为28.04%,其次是Rht8基因,约占总材料的23.17%。含有Rht-D1b矮杆基因的材料为8个、含有Rht5基因的材料11个以及含有Rht12基因的材料8个,分别占总材料的9.76%、13.41%、9.76%。在含有矮杆基因的品种中,含有2个和2个以上矮杆基因的材料18个,占总材料的21.95%。同时含有3个矮杆基因的材料有2个,分别是Rht-B1b、Rht8、Rht12和Rht-B1b、Rht5、Rht8。有5个材料含有Rht-B1b和Rht8基因,2个材料含有Rht-D1b和Rht8基因,5个材料含有Rht-B1b和Rht5基因,2个材料含有Rht8和Rht5基因,1个材料含有Rht-D1b和Rht5基因。其余32个品种各含有1个矮杆基因。未发现同时含有Rht-B1b、Rht-D1b的品种。
In order to define the distribution characteristics of dwarfing genes in wheat varieties in qinghai province and excavate the less use of dwarfing genes, this study used eight specific molecular markers of wheat dwarfing genes to test the dwarfing genes in 85 wheat varieties in qinghai province. Results showed that more than 56.1% of 82 varieties in qinghai wheat materials (50) contained dwarfing genes, with which Rht-B1b and Rht-8 gene frequency was higher, at 28.04% and 23.17% respectively. Only eight materials contained Rht-D1b gene, 11 materials contained Rht5 gene and 9 materials contained Rht12 gene, at 9.76%、13.41%、9.76% respectively. In the varieties containing the dwarfing gene, there were 18 materials containing more than 2 and 2 dwarfing genes accounting for 21.95% of the total materials. There were two varieties containing three dwarfing genes at the same time, including one containing Rht-B1b、Rht8 and Rht12 genes, one containing Rht-B1b、Rht5 and Rht8 genes. Five varieties contained Rht-B1b and Rht8 genes at the same time.Two materials contained Rht-D1b and Rht8 genes at the same time. Five materials contained Rht-B1b and Rht5 genes an the same time .Two materials contained Rht8 and Rht5 genes at the same time. One material contained Rht-D1b and Rht5 genes at the same time. And the rest of the 32 varieties each contained one dwarf gene. No variety was found at the same time containing Rht- B1b, Rht-D1b genes.
徐晶晶,蒋礼玲,马晓岗,等.青海育成小麦5个主效矮杆基因的分子检测[J].植物遗传资源学报,2017,18(3):564-572.
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