VNTR分子标记技术在甜菜不育系选育中的应用  被引量:4

VNTR Molecular Marker Technology in the Application of Beet Sterile Lines Breeding

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作  者:王良[1,2] 白晨[1] 李晓东[1] 张惠忠[1] 

机构地区:[1]内蒙古农牧业科学院,内蒙古呼和浩特010031 [2]内蒙古农业大学,内蒙古呼和浩特010019

出  处:《华北农学报》2014年第4期135-139,共5页Acta Agriculturae Boreali-Sinica

基  金:现代农业产业技术体系建设专项资金项目(CARS-210102)

摘  要:为了更高效的利用杂种优势,加速选择出成对稳定的甜菜不育系及保持系纯系材料,采用已开发的甜菜线粒体DNA特异性引物TR1,对以甜菜线粒体DNA和基因组DNA的鉴定结果是否一致进行了分析。结果表明,在利用该引物进行甜菜细胞质育性鉴定中可以直接用基因组DNA,减少了试验步骤,提高了效率。通过VNTR分子标记技术从160对供试材料中鉴定出的甜菜细胞质不育及其对应的具有保持能力的材料40对,分别为31303(04)(1对)、31327(28)(1对)、31329(30)(1对)、31333(34)(1对)、31339(40)(1对)、31341(42)(5对)、313343(44)(5对)、31345(46)(4对)、31355(56)(2对)、31361(62)(1对)、31365(66)(1对)、31367(68)(1对)、31373(74)(1对)、32315(16)(1对)、32321(22)(4对)、32323(24)(1对)、32327(28)(4对)、32331(32)(3对)、32341(42)(1对)、32343(44)(1对)。In order to utilize heterosis more efficiently ,select and maintain pairwise pure beet male sterile lines and maintainer lines .In this study ,we used the unstable beet male sterile lines and their corresponding maintainer lines in bagging selection process as experimental materials .Special primers have been developed for the cytoplasm fertility molecular identification .The results showed that:the special primers can identify male sterile lines and maintainer materials effectively .The primers used in this study can provide more effective service to the sugar beet breeding .We also optimized the extractive method of mitochondrial DNA in sugar beet .And we directly extract the genome DNA for molecular identification .It can simplify the experimental process and improve the efficiency .We i-dentified 160 pairs of germplasms of unstable beet cytoplasmic male sterility through VNTR molecular markers .The 40 pairs of stable pure beet sterile lines and their corresponding maintainer lines were identified .The 40 pairs of stable pure beet are 31303(04)(1 pair),31327(28)(1 pair),31329(30)(1 pair),31333(34)(1 pair),31339(40) (1 pair),31341(42)(5 pairs),313343(44)(5 pairs),31345(46)(4 pairs),31355(56)(2 pairs),31361(62) (1 pair),31365(66)(1 pair),31367(68)(1 pair),31373(74)(1 pair),32315(16)(1 pair),32321(22)(4 pairs), 32323(24)(1 pair),32327(28)(4 pairs),32331(32)(3 pairs),32341(42)(1 pair),32343(44)(1 pair).

关 键 词:甜菜 分子辅助育种 雄性不育株 分子标记 

分 类 号:S635.103[农业科学—蔬菜学]

 

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