First evaluation of the population structure, genetic diversity and landscape connectivity of the Endangered Arabian tahr.
First evaluation of the population structure, genetic diversity and landscape connectivity of the Endangered Arabian tahr.
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DOI：
10.1007/s42991-020-00072-4
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Senn H
中科院分区：
文献类型：
--
作者：
Ross S;Costanzi JM;Al Jahdhami M;Al Rawahi H;Ghazali M;Senn H
阿拉伯塔赫尔（Arabitragus jayakari）只出现在北方阿曼和阿拉伯联合酋长国的山区。该物种被列为濒危物种，因为它的人口减少。在这项研究中，我们结合遗传和景观生态学技术，以通知景观规模保护和遗传管理的阿拉伯塔尔。在53个样本的数据集中使用线粒体控制区的540个碱基对，我们发现了8个单倍型，它们分为两个单倍群。利用14个微卫星位点的群体遗传分析也显示了一个弱的，但显着的分裂。景观连通性分析支持遗传结果显示穷人之间的连接在遥远的南部的研究区域和那些在北部的人口。确定了连接阿拉伯塔尔族人口的走廊的最可能位置。多车道高速公路阻碍了塔尔族人口之间的许多走廊，需要恢复这些连接，以维持阿拉伯塔尔族人口的生存能力。由于Wadi Sareen以外的遗传样本有限，需要进一步采样以更全面地阐明阿拉伯塔尔牛的mtDNA和核结构。我们的研究提供了一个工具包，可用于未来的阿拉伯塔尔人口的遗传和连接监测。本文的在线版本（10.1007/s42991-020-00072-4）包含补充材料，可供授权用户使用。
The Arabian tahr (Arabitragus jayakari) occurs only in the mountains of northern Oman and the United Arab Emirates. The species is classified as Endangered due to its small declining population. In this study, we combined genetic and landscape ecology techniques in order to inform landscape scale conservation and genetic management of Arabian tahr. Using 540 base pairs of mitochondrial control region in a dataset of 53 samples, we found eight haplotypes, which fell into two haplogroups. Population genetic analysis using a panel of 14 microsatellite loci also showed a weak, but significant division. Analyses of landscape connectivity supported the genetic results showing poor connectivity between populations in the far south of the study area and those in the north. The most likely location of corridors connecting Arabian tahr populations were identified. Many corridors between tahr populations are impeded by multi-lane highways and restoration of these connections is required to maintain population viability of Arabian tahr. Owing to limited genetic samples outside of Wadi Sareen, further sampling is needed to elucidate both mtDNA and the nuclear structure of Arabian tahr more fully. Our study provides a toolkit that may be used for future genetic and connectivity monitoring of the Arabian tahr population. The online version of this article (10.1007/s42991-020-00072-4) contains supplementary material, which is available to authorized users.
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