Analysis of Genetic Diversity in Lycoris radiata Using ISSRMarker / 红花石蒜遗传多样性的ISSR分析

The genetic diversity of 14 Lycoris radiata populations was analyzed by ISSR markers. The results ofPOPGEN32 analysis showed that at species level, the percentage of polymorphics was 92. 31% , Shannon’s index(H) was 0. 459 7, and Nei’s gene diversity ( I) was 0. 302 5, indicating a high level of gen...

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Published inForest research (Beijing) Vol. 21; no. 6; p. 768
Main Authors 左慧, 杨志玲, 杨旭, 谭梓峰, 于华会
Format Journal Article
LanguageChinese
Published Beijing Chinese Academy of Forestry 01.01.2008
Subjects
Genetic diversity
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Summary:The genetic diversity of 14 Lycoris radiata populations was analyzed by ISSR markers. The results ofPOPGEN32 analysis showed that at species level, the percentage of polymorphics was 92. 31% , Shannon’s index(H) was 0. 459 7, and Nei’s gene diversity ( I) was 0. 302 5, indicating a high level of genetic diversity. But atpopulation level, theywere 49. 65% , 0. 262 0 and 0. 176 3, respectively, suggesting a low level of genetic diversity.And the gene differentiation coefficient (Gst) and gene flow (Nm ) among the populations were 0. 503 5 and0. 698 3, respectively. The analysis ofmolecular variance (AMOVA) demonstrated that there was a relatively highlevel genetic variation (46. 12% ) among the populations, and there was relatively low genetic variation (53. 88% )within the populations. The high genetic differentiation among populations and the low genetic diversity withinpopulations could be attributed to the habitat fragmentation and the limited gene flow among populations. 利用ISSR分子标记技术对14个居群的红花石蒜进行遗传多样性研究,结果
ISSN:1001-1498