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首页> 外文期刊>Biochemical Genetics >Genetic structure within and among populations of Saruma henryi, an endangered plant Endemic to China
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Genetic structure within and among populations of Saruma henryi, an endangered plant Endemic to China

机译：中国特有濒危植物Saruma henryi种群内部和种群之间的遗传结构

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摘要

The endangered perennial plant Saruma henryi Oliv. is endemic to China and has phylogenetic, ecological, and medicinal value. We used 10 microsatellite (SSR) loci to investigate genetic diversity and differentiation in 16 natural populations. Genetic diversity was high at the species level (H E = 0.9427, h = 0.9410, I = 3.0213) and low at the population level (H E = 0.4441, h = 0.4307, I = 0.6822). Pronounced genetic differentiation was detected among populations (G ST = 0.5428, F ST = 0.5524), in line with the limited among-population gene flow (N m = 0.21). The significant isolation-by-distance pattern revealed by a Mantel test (r = 0.311, P = 0.001) suggested a clear geographic tendency in the distribution of genetic variability. Bayesian assignment and principal coordinates analyses supported the clustering of 16 populations into three groups. The present SSR results were also compared with previously published ISSR results. These results have significant implications for conservation of the species.
机译：濒危的多年生植物Saruma henryi Oliv。是中国特有的，具有系统发育，生态和药用价值。我们使用10个微卫星（SSR）基因座来调查16个自然种群的遗传多样性和分化。遗传多样性在物种水平上较高（H E = 0.9427，h = 0.9410，I = 3.0213），在种群水平较低（H E = 0.4441，h = 0.4307，I = 0.6822）。在人群中检测到明显的遗传分化（G ST = 0.5428，F ST = 0.5524），这与有限的种群间基因流（N m = 0.21）相符。 Mantel检验显示出显着的按距离隔离模式（r = 0.311，P = 0.001）表明遗传变异的分布具有明显的地理趋势。贝叶斯分配和主坐标分析支持将16个总体分为三类。还将当前的SSR结果与以前发布的ISSR结果进行了比较。这些结果对物种的保护具有重要意义。

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