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首页> 外文期刊>Korean Journal of Biological Sciences >Genetic diversity and population structure of two Korean pond frog species, Rana nigromaculata and R. plancyi (Anura, Ranidae), with a survey of temporal genetic variation in R. nigromaculata
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Genetic diversity and population structure of two Korean pond frog species, Rana nigromaculata and R. plancyi (Anura, Ranidae), with a survey of temporal genetic variation in R. nigromaculata

机译：两种蛙池蛙物种Rana nigromaculata和R. plancyi（Anura，Ranidae）的遗传多样性和种群结构，以及对R. nigromaculata的时间遗传变异的调查

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摘要

Korean R. plancyi occupies a restricted area in western South Korea and shows a relatively low level of genic variability (%P=15.2, Ho=0.052, He=0.048). In contrast, R. nigromaculata is broadly distributed in South Korea. The observed low level of variability of R. nigromaculata (%P=14.3, Ho=0.042, He=0.043) is probably due to its recent colonization. Populations of R. nigromaculata exhibited considerable genetic differentiation (F_(ST)=0.149) and low level of gene flow (Nm=1.427) among populations, compared to those of R. plancyi (F_(ST)=0.096, Nm=2.354), which occupies a restricted area. The observed levels of gene flow among populations of R. nigromaculata (Nm=1.427) over a broad geographic range is relatively higher than other amphibian species. The high level of gene flow is probably the result of the high dispersal abilities of R. nigromaculata. A survey of temporal genic variation of R. nigromaculata showed that there was no significant change on the overall average genetic diversity from 1978 (average He=0.044) to 1997 (average He=0.040). Wright's F-statistics also indicated no significant genetic differentiation from 1978 (F_(ST)=0.118) to 1997 (F_(ST)=0.108). This suggests that the environmental change appears to have had little influence on the genetic composition of R. nigromaculata in the study areas during the past 20 years. The low level of temporal variation might be due to the result of high dispersal abilities and wide migration range of this species.
机译：朝鲜红藻（R. plancyi）在韩国西部占据一个限制区域，并且显示出较低的基因变异水平（％P = 15.2，Ho = 0.052，He = 0.048）。相反，R。nigromaculata在韩国广泛分布。观察到的黑腹果蝇的低水平变异性（％P = 14.3，Ho = 0.042，He = 0.043）可能是由于其最近的定殖。与浮萍R.cycyi（F_（ST）= 0.096，Nm = 2.354）相比，R。nigromaculata种群显示出显着的遗传分化（F_（ST）= 0.149）和低水平的基因流（Nm = 1.427）。 ，它占了禁区。在广泛的地理范围内，黑潮罗汉果种群（Nm = 1.427）之间观察到的基因流水平相对高于其他两栖动物物种。高水平的基因流动可能是黑黑麦草的高分散能力的结果。 R. nigromaculata的时间遗传变异调查显示，从1978年（平均He = 0.044）到1997年（平均He = 0.040），总体平均遗传多样性没有显着变化。赖特的F统计量也表明，从1978年（F_（ST）= 0.118）到1997年（F_（ST）= 0.108），遗传差异不明显。这表明在过去的20年中，环境变化似乎对研究区域的黑麦草的遗传组成几乎没有影响。低水平的时间变化可能是由于该物种的高分散能力和广泛的迁徙范围导致的。

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