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基于SSR分子标记的芥蓝遗传多样性分析

文献类型: 中文期刊

作者: 张德双 1 ; 张娜 1 ; 于拴仓 1 ; 张凤兰 1 ; 隋光磊 1 ; 余阳俊 1 ; 赵岫云 1 ; 汪维红 1 ; 苏同兵 1 ; 卢桂香 1 ;

作者机构: 1.北京市农林科学院蔬菜研究中心

关键词: 芥蓝;SSR;多样性

期刊名称: 华北农学报

ISSN: 1000-7091

年卷期: 2014 年 29 卷 04 期

页码: 140-144

收录情况: 北大核心 ; CSCD

摘要: 芥蓝的研究多集中在分类、常规种资源遗传多样性等方面。随着芥蓝杂交种的问世,杂交种的优势越来越突出,市场效果明显,因此,对芥蓝自交系的遗传多样性等研究尤为重要。选取分布在甘蓝9条染色体上的55对SSR引物,从中筛选出多态性好、分布均匀的15条SSR引物对98份芥蓝自交系进行分析,共得到65个多态性带型。采用UPGMA方法构建了一张聚类图,在相似系数为0.71时,将98份芥蓝自交系初步分为1,2,3,4,5组。研究结果为芥蓝育种中的亲本选配、杂交种鉴定和资源保护等提供了依据。在试配芥蓝新组合时,应选择遗传距离较远的自交系作为重点材料,后代的杂种优势会更显著。

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