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首页> 外文期刊>Ecological research >Environmental factors affecting population level genetic divergence of the striped field mouse (Apodemus agrarius) in South Korea
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Environmental factors affecting population level genetic divergence of the striped field mouse (Apodemus agrarius) in South Korea

机译：影响韩国条纹田鼠（Apodemus agrarius）种群水平遗传差异的环境因素

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摘要

The cognizing of connectivity among small mammal populations across heterogeneous landscapes is complicated due to complex influences of landscape and anthropogenic factors on gene flow. A landscape genetics approach offers inferences on how landscape features drive population structure. Through a landscape genetics approach, we investigated influences of geographical, environmental, and anthropogenic features on populations of Apodemus agrarius, the striped field mouse, the prime vector of hemorrhagic fever by a landscape genetic approach. We identified landscape features that might affect the population structure of striped field mice by analyzing microsatellite markers of 197 striped field mice from 21 populations throughout South Korea. We developed Maximum-likelihood population effects models based on landscape distances and resistance matrices and pairwise F-ST values for meta-populations of striped field mouse. We also conducted Mantel and partial Mantel tests to investigate geographic patterns of genetic similarities. In Mantel and partial Mantel tests, the F-ST was significantly correlated with all three models of movement; movement cost, Euclidian distance and least-cost distance, although the magnitudes of correlations varied. The 4 top-ranked models included three variables; temperature, precipitation and one human disturbance factor (population). We did not attain a significant effect for anthropogenic factors on genetic similarities among populations in the Korean striped field mouse, but we confirmed a significant association for genetic similarity with climatic features (temperature and precipitation).
机译：由于景观和人为因素对基因流的复杂影响，跨异质景观的小型哺乳动物种群之间的连通性认识非常复杂。景观遗传学方法可以推断景观特征如何驱动人口结构。通过景观遗传学方法，我们通过景观遗传学方法研究了地理，环境和人为特征对黑线姬鼠，条纹田鼠，失血性发热主要媒介种群的影响。我们通过分析来自韩国21个种群的197条带状田鼠的微卫星标记，确定了可能影响带状田鼠的种群结构的景观特征。我们开发了基于景观距离和阻力矩阵以及成对F-ST值的最大似然种群效应模型，用于条带化田间小鼠的元种群。我们还进行了Mantel和部分Mantel测试，以研究遗传相似性的地理模式。在壁炉架和部分壁炉架测试中，F-ST与所有三种运动模型都具有显着相关性。运动成本，欧几里得距离和最小成本距离，尽管相关程度不同。这4个排名最高的模型包含三个变量：温度，降水和一个人为干扰因素（人口）。我们没有人为因素对朝鲜条纹田鼠种群间遗传相似性的显着影响，但是我们证实遗传相似性与气候特征（温度和降水）之间存在显着关联。

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