摘要
利用ISSR分子标记技术,对红花荷主要分布区8个天然群体的遗传多样性和遗传结构进行研究。结果表明:红花荷在物种水平上其多态位点百分率(PPB)为94.86%,Shannon表型多样性指数(H0)为0.3438;在群体水平上PPB为73.07%,H0为0.2763,说明红花荷群体具有丰富的遗传多样性。AMOVA分子方差分析表明,红花荷遗传变异主要来自群体内,群体内遗传变异占群体的70.29%,群体间占29.71%。Mantel检测表明红花荷群体间的遗传距离与地理距离之间没有明显相关性。
The genetic diversities and genetic structures of 8 Rhodoleia championii wild populations were evaluated using ISSR markers. The results showed that R. championii had higher genetic diversity at both species level （percentage of polymorphic bands （PPB） = 94.86%, Shannon＇ s phenotypic diversity index （Ho） = 0. 343 8） and population level （ PPB = 73.07%, Ho = 0. 267 3 ）. The analysis of molecular variance （AMOVA） showed that genetic differentiation among and within populations was all found to be remarkably high, and 29.71% of genetic variation existed among and genetic distances were not significantly correlated populations. The Mantel test showed that the geographic to each other.
出处
《植物研究》
CAS
CSCD
北大核心
2014年第4期479-484,共6页
Bulletin of Botanical Research
基金
国家林业公益性行业科研专项基金(201104081)
广东省科技计划项目(2007A020200001-7)
关键词
红花荷
ISSR
遗传多样性
遗传结构
Rhodoleia championii
ISSR
genetic diversity
genetic structure
