[Analysis of population genetic structure and molecular identification of Changium smyrnioides and Chuanminshen violaceum with ISSR marker].
[Analysis of population genetic structure and molecular identification of Changium smyrnioides and Chuanminshen violaceum with ISSR marker].
复制标题
DOI：
--
复制
发表时间：
2003-07
期刊：
影响因子：
--
通讯作者：
Y. Qiu;C. Fu;Fei-jie Wu
中科院分区：
文献类型：
--
作者：
Y. Qiu;C. Fu;Fei-jie Wu
OBJECTIVE To assess the population genetic diversity and genetic structure and screen species-specific bands for identification of Changium smyrnioides and Chuanminshen violaceum. METHOD Seven wild populations of Changium smyrnioides and one cultivated population of Chuanminshen violaceum were studied by ISSR analysis. The population genetic diversity and population genetic structure were assessed by using POPGENE software. RESULT A total of 152 ISSR markers were scored, among which 136 (90.8%) were polymorphic. The values of Gst tended to be high (mean Gst = 0.575). The level of genetic divesity of Changium smyrnioides (A = 1.272; P = 27.26%; I = 0.132; H = 0.087) was higher than that of Chuanminshen violaceum (A = 1.217; P = 21.7; I = 0.103; H = 0.067). CONCLUSION The genetic variation of Changium smyrnioides is high and the majority of genetic variation occur among populations. Substantial genetic divergence is shown by cluster analysis (UPGMA) to befound between Changium smyrnioides and Chuanminshen violaceum at DNA level. In addition, one species-specific marker has been obtained in Chuanminshen violaceum. The phylogenetic relationship of two species has also been discussed.
