亚麻EST序列中SSR标记的筛选

被引:19
作者
张建平 [1 ]
王斌 [2 ]
赵丽娟 [3 ]
王利民 [1 ]
杨崇庆 [2 ]
颉瑞霞 [2 ]
党占海 [1 ]
机构
[1] 甘肃省农业科学院作物研究所
[2] 甘肃农业大学农学院
[3] 甘肃省农业科学院生物技术研究所
关键词
亚麻; EST; SSR; 标记;
D O I
暂无
中图分类号
S563.2 [亚麻];
学科分类号
摘要
利用亚麻NCBI数据库中的7941条亚麻EST序列进行SSR的筛选,共发现222个SSR,占整个EST数据库的2.73%,其中三核苷酸重复单元的EST-SSR占总SSR的72.1%,二核苷酸和四核苷酸二者出现的频率基本相近,分别占总SSR的14.4%和13.5%.AGAA是四核苷酸中的优势重复类型,占四核苷酸重复类型的67.67%.设计的21对EST-SSR引物中有18对在10个亚麻材料中有扩增产物,占设计引物的85%,有14对产物条带比较清晰并具有多态性.基于SSR标记进行聚类分析,可将10个亚麻材料划分为3个组.本研究建立的亚麻SSR标记,为亚麻遗传多样性鉴定、分子作图等研究提供了一种有效的分子标记系统.
引用
收藏
页码:910 / 915
页数:6
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