%0 Journal Article
%T Analysis of simple sequence repeats in genomes of Scle-rotinia sclerotiorum and Botrytis cinerea<br>核盘菌和灰葡萄孢基因组中的简单重复序列分析
%A LI Wei
%A CHEN Huai-Gu
%A LI Wei
%A ZHANG Ai-Xiang
%A CHEN Li-Hua
%A JIANG Wei-Li
%A <br>李伟
%A 陈怀谷
%A 李伟
%A 张爱香
%A 陈丽华
%A 姜伟丽
%J 遗传
%D 2007
%I 
%X Simple sequence repeats or microsatellites have been used as genetic markers in population genetics because of their abundance and length variation between different individuals. This study examined the SSRs in the completely sequenced Sclerotinia sclerotiorum and Botrytis cinerea genomes. The occurrences, relative abundance, relative density, most common motifs, and the longest SSRs in the two species were analyzed, and compared with other plant pathogenic fungal species, such as Fusarium graminearum, Magnaporthe grisea and Ustilago maydis. The results demonstrated that the SSRs are abundant in S. sclerotiorum and B. cinerea genomes, and 6 539 and 8 627 SSRs were obtained from these species. The types and distributions of SSRs have similarities between the two species. In the genomes of S. sclerofiorum and B. cinerea, tetra-, penta- and hexa-nucleotide repeats were more abundant than other species, indicating high mutation rates in these species. Furthermore, the abundance and relative density of SSRs were not influenced by the genome sizes and GC content. The analysis in this study provided useful information on applications of microsatellites in population genetics of S. sclerofiorum and B. cinema.
%K Sclerotinia sclerotiorum
%K Botrytis cinerea
%K simple sequence repeats
%K population genetics<br>核盘菌
%K 灰葡萄孢
%K 简单重复序列
%K 群体遗传学
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=3E23F50E071DF18E21B2F5AEE4F1FA5E&aid=99C4E5FCC6EAC882&yid=A732AF04DDA03BB3&vid=771469D9D58C34FF&iid=9CF7A0430CBB2DFD&sid=B8D8B337883846D1&eid=7C112B12217D9FAF&journal_id=0253-9772&journal_name=遗传&referenced_num=0&reference_num=18