挪威云杉EST资源的SSR信息分析  

Analysis on SSR in EST of Picea abies

作　　者：程小毛[1] 宗媛媛[1] 黄晓霞[1] 

机构地区：[1]西南林业大学园林学院,云南昆明650224

出　　处：《现代农业科技》2011年第8期185-186,192,共3页Modern Agricultural Science and Technology

基　　金："省部级重点学科;省高校重点实验室及校实验室共享平台"项目;西南林业大学校级重点基金项目(110909);云南省应用基础面上项目(2010ZC267)

摘　　要：对挪威云杉EST序列的SSR进行研究,结果表明:4 164条无冗余EST序列中,SSR的出现频率是7.39%,其平均分布频率为7.35 kb,平均长度为15.39 bp;三、四核苷酸是主要的重复类型,二者出现的频率占总SSR的73.29%;AG/CT、AGG/CCT、AAAG/CTTT分别是二、三、四核苷酸中的优势重复类型。SSR in EST of Picea abies was studied.The results showed that SSRs accounted for 7.37% in 4 164 non-redundant ESTs.The average distribution distance and length of the EST-SSRs were about 7.35 kb and 15.39 bp,respectively;Trinucleotide and tetranucleotide were the major types,accounting for 73.29% of all the SSRs;AG/CT,AGG/CCT and AAAG/CTTT were the dominant motifs for dinucleotide,trinucleotide and tetranucleotide repeats,respectively.

关 键 词：挪威云杉 EST SSR 

分 类 号：S791.189[农业科学—林木遗传育种]