山东长岛南4岛狗尾草(Setaira viridis(L.)Beauv)种群遗传多样性的ISSR分析  

Analysis of genetic diversity of natural populations in the four islands south of Changdao,Shandong Province,Setaira viridis(L.) Beauv by ISSR

作　　者：张恒庆[1] 吴锦美[1] 房孝迪[1] 杜洋[1] 谭坤[1] 张晓明[1] 范强军 祝恩伟 

机构地区：[1]辽宁师范大学生命科学学院,辽宁大连116081 [2]山东长岛国家级自然保护区管理局,山东长岛265800

出　　处：《辽宁师范大学学报（自然科学版）》2013年第1期98-101,共4页Journal of Liaoning Normal University:Natural Science Edition

摘　　要：利用ISSR分子标记技术研究了山东省长岛县南部4岛90份狗尾草材料的遗传多样性及遗传结构.13个ISSR引物共扩增出148个位点,多态性位点比率为70.30%,Shannon信息指数在物种水平上为0.344 9.根据Gst值,遗传变异有16.53%发生在种群间.遗传距离分析表明,NCS种群与DHS种群遗传一致度最高,遗传距离与地理距离之间没有相关性.Using ISSR method, the genetic diversity and genetic structure of 90 individuals Setaira viridis（L. ）Beauv in the four islands south of Changdao,Shandong Province were studied in this pa- per. Through the amplification of ISSR with 13 primers,148 loci were detected and the percentage of polymorphic loci was 70.30%. Shannon＇s information index was 0. 344 9 at the species level,genetic variance was 16. 53% among populations according to Gst value. The genetic distances analysis showed that NCS population and DHS population have the highest population genetic identity,genetic distances and geographic distances have no correlation.

关 键 词：狗尾草 ISSR 遗传多样性 遗传结构 

分 类 号：Q145.1[生物学—生态学]