鹅掌楸EST-SSR引物开发及通用性分析

被引:74
作者
胥猛
李火根
机构
[1] 南京林业大学林木遗传育种与基因工程重点实验室
关键词
EST-SSR标记; 鹅掌楸; 中国马褂木; 通用性;
D O I
暂无
中图分类号
S792.21 [鹅掌楸];
学科分类号
090708 [林木遗传育种学];
摘要
通过对6520条鹅掌楸EST序列进行检索,在364条ESTs中发现394个SSRs,鹅掌楸EST-SSRs平均密度为每8.5kb含有1个SSR;在检索出的SSRs中,二核苷酸重复单元的SSRs类型最多,占总数的61.9%。利用SSR-ESTs序列共设计176对EST-SSR引物,其中132对在鹅掌楸上有扩增产物,66对扩增出多态,多态性引物占所设计引物的36.9%。这批EST-SSR引物在物种之间具有较高的通用性。研究表明在鹅掌楸中表现多态的66对EST-SSR引物,85%在中国马褂木中有扩增,54%在白玉兰中有扩增。
引用
收藏
页码:615 / 618
页数:4
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