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.
出处
《辽宁师范大学学报（自然科学版）》
CAS
2013年第1期98-101,共4页
Journal of Liaoning Normal University:Natural Science Edition
关键词
狗尾草
ISSR
遗传多样性
遗传结构
Setaira viridis （L.） Beauv
ISSR
genetic diversity
genetic structure
