Genetic diversity of the endangered Chinese endemic plant Monimopetalum chinense revealed by amplified fragment length polymorphism (AFLP)
Genetic diversity of the endangered Chinese endemic plant Monimopetalum chinense revealed by amplified fragment length polymorphism (AFLP)
复制标题
扩增片段长度多态性（AFLP）揭示濒危中国特有植物Monimopetalum chinense的遗传多样性
DOI：
10.1016/j.bse.2011.05.012
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发表时间：
2011-08-01
影响因子：
1.6
通讯作者：
Guo, Peiguo
中科院分区：
文献类型：
--
作者：
Li, Haisheng;Xie, Guowen;Guo, Peiguo
中国黄花牡丹属是中国东部特有的濒危木本藤本植物。使用扩增片段长度多态(AFLP)标记，我们检查了分布在物种分布的11个种群内部和之间的遗传变异水平。在物种水平(P=91.0%，H(E)=0.232，I(S)=0.365)和种群水平(P=53.0%，H(E)=0.155，I(S)=0.239)上，其它遗传多样性指标表现出相对较高的变异水平。种群也表现出较高的遗传分化水平(Nei‘s遗传多样性分析，G(ST)=0.330)，对应于按距离隔离的等级种群结构。这些结果表明，尽管基因流水平较低，但中华绒螯蟹种群仍具有相当数量的遗传多样性。该物种的管理计划应包括确保现有种群内和种群之间保持较高遗传多样性的措施。(C)2011爱思唯尔有限公司。保留所有权利。
Monimopetalum chinense Rehd. is an endangered woody vine endemic to eastern China. Using amplified fragment length polymorphism (AFLP) markers, we examined levels of genetic variation within and among eleven populations located across the species' distribution. Although modest levels of heterozygosity were detected, other measures of genetic diversity registered relatively high levels of variability, both at the species level (P = 91.0%, H(E) = 0.232, I(S) = 0.365) and at the population level (P = 53.0%, H(E) = 0.155, I(S) = 0.239). Populations also exhibited high levels of genetic differentiation (Nei's genetic diversity analysis, G(ST) = 0.330), corresponding to isolation-by-distance and hierarchical population structure. These results indicate that, despite low levels of gene flow, populations of M. chinense still harbor substantial amounts of genetic diversity. Management plans for the species should include measures that ensure genetic diversity remains high within and among extant populations. (C) 2011 Elsevier Ltd. All rights reserved.