西南地区87份小麦品种(系)穗发芽抗性的分子鉴定及筛选  

Molecular Identification and Screening of Spike Germination Resistance of 87 Wheat Varieties(Lines) in Southwest China

作　　者：罗永露 隋建枢 谢才江 王伟 陈天青 何庆才 LUO Yonglu;SUI Jianshu;XIE Caijiang;WANG Wei;CHEN Tianqing;HE Qingcai(GuizhouTnstitute of UplanandCrops,Guiyang 550006,China;Guizhou Medical University,Guiyang 550025,China)

机构地区：[1]贵州省旱粮研究所,贵阳550006 [2]贵州医科大学,贵阳550025

出　　处：《种子》2020年第1期49-53,共5页Seed

基　　金：国家小麦产业技术体系贵阳综合试验站建设项目(CARS-3-2-42);七大作物育种专项“西南麦区优质多抗高产小麦新品种培育”(2017 YFD 0100900)子课题“抗逆抗白粉病小麦新品种培育”;中央补助地方试验室建设项目《贵州省特色旱地粮食作物种质资源创新平台建设》(黔科中引地[2018]4003)

摘　　要：小麦穗发芽使小麦的产量大幅度降低,严重影响小麦的加工品质,而西南麦区一直是小麦穗发芽的重发区。为了在历史小麦品种(系)中鉴定出抗穗发芽的种质材料,本研究以来自西南麦区的87份小麦主推品种及后备品系为研究材料,利用PM19、Vp1B3两种抗穗发芽候选基因进行分子标记,为抗穗发芽育种提供种质资源。结果表明,在87份小麦中有4份含有PM-19A1a基因,分别是科成4号、兴0217、蜀麦1763、SW 1747;有9份含有Vp-1Bb基因,分别是黔麦0504、16092、绵麦303、内麦366、川麦604、BL 5002、BL 6007、2017 P 4-2、SW 1747。The pre-harvest sprouting of wheat greatly reduces the yield of wheat and seriously affects the processing quality of wheat,and the southwest wheat area has always been the area of wheat sprout before harvesting.In order to screen the germplasm with low sprout-germination from these wheat varieties(lines)planted over the years,the molecular marker isolated from the spike germination resistance varieties‘PM19’and‘Vp1B3’reported in the literature were used for identifying 87 main cultivars and reserve lines from the southwest wheat region,and which the results could provide germplasm resources for breeding the new varieties resistant to spike germination.The results showed that four of the 87 wheat samples contained PM-19A1a gene,including the varieties‘Kecheng 4’,‘Xing 0217’,‘Shumai 1763’and‘SW 1747’,while nine of 87 wheat samples possessed VP-1Bb gene,including‘Qianmai 0504’,‘16092’,‘Mianmai 303’,‘Neimai 366’,‘Chuanmai 604’,‘BL 5002’,‘BL 6007’,‘2017 P 4-2’and‘SW 1747’.

关 键 词：西南地区 小麦穗发芽 分子标记 

分 类 号：S512.1[农业科学—作物学]