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首页> 外文期刊>Journal of genetics >Genetic variability and structure of an isolated population of Ambystoma altamirani, a mole salamander that lives in the mountains of one of the largest urban areas in the world
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Genetic variability and structure of an isolated population of Ambystoma altamirani, a mole salamander that lives in the mountains of one of the largest urban areas in the world

机译：by鼠by的孤立种群的遗传变异和结构，Am鼠生活在世界上最大的城市之一的山区

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摘要

Amphibians are globally threatened by habitat loss and fragmentation; species within the order Ambystoma are not the exception, as there are 18 species of mole salamanders in México, of which 16 are endemic and all species are under some national or international status of protection. The mole salamander, Ambystoma altamirani is a microendemic species, which is distributed incentral México, within the trans-Mexican volcanic belt, and is one of the most threatened species due to habitat destruction and the introduction of exotic species. Nine microsatellite markers were used to determine the genetic structure, genetic variability, effective population size, presence of bottlenecks and inbreeding coefficient of one population of A. altamirani to generate information which might help to protect and conserve this threatened species. We found two genetic subpopulations with significant level of genetic structure (FST = 0.005) and high levels of genetic variability (Ho = 0.883; He = 0.621); we also found a small population size (Ne = 8.8), the presence of historical (M = 0.486) and recent bottlenecks under IAM and TPM models, with a low, but significantcoefficient of inbreeding (FIS = ?0.451). This information will help us to raise conservation strategies of this microendemic mole salamander species.
机译：两栖动物在全球范围内受到栖息地丧失和破碎化的威胁; Ambystoma物种中的动物也不例外，因为墨西哥sal鼠共有18种，其中16种是地方性的，所有物种都处于某种国家或国际保护状态。 sal，Ambystoma altamirani是一种微特有物种，分布在墨西哥中部，跨墨西哥火山带，由于栖息地遭到破坏和引进外来物种而成为受威胁最大的物种之一。使用九种微卫星标记物来确定一个A. altamirani种群的遗传结构，遗传变异性，有效种群大小，瓶颈的存在和近交系数，以产生有助于保护和保护这一受威胁物种的信息。我们发现了两个具有显着水平的遗传结构（FST = 0.005）和高水平的遗传变异（Ho = 0.883; He = 0.621）的遗传亚群。我们还发现，在IAM和TPM模式下，人口规模较小（Ne = 8.8），历史存在（M = 0.486）和最近的瓶颈，近交系数很低，但显着（FIS = 0.451）。这些信息将帮助我们提高这种微地方mole鼠物种的保护策略。

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