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Strong genetic differentiation among populations of Cheirotonus gestroi (Coleoptera: Euchiridae) in its native area sheds lights on species conservation

文献类型： 外文期刊

作者： Yang, Chen 1 ; Zhu, En-Jiao 1 ; He, Qiu-Ju 1 ; Yi, Chuan-Hui 1 ; Wang, Xu-Bo 2 ; Hu, Shao-Ji 3 ; Wei, Shu-Jun 5 ;

作者机构： 1.Southwest Forestry Univ, Key Lab Forest Disaster Warning & Control Yunnan, Kunming, Yunnan, Peoples R China

2.Southwest Forestry Univ, Yunnan Acad Biodivers, Kunming, Yunnan, Peoples R China

3.Yunnan Univ, Yunnan Key Lab Int Rivers & Transboundary Ecosecu, Kunming, Yunnan, Peoples R China

4.Yunnan Univ, Inst Int Rivers & Ecosecur, Kunming, Yunnan, Peoples R China

5.Beijing Acad Agr & Forestry Sci, Inst Plant & Environm Protect, Beijing, Peoples R China

关键词： Conservation biology; Cheirotonus gestroi; population genetic structure; Hengduan Mountains; demographic history

期刊名称：MITOCHONDRIAL DNA PART A （ 影响因子：1.514； 五年影响因子：0.707 ）

ISSN： 2470-1394

年卷期： 2020 年 31 卷 3 期

页码：

收录情况： SCI

摘要： The long-armed scarab (Cheirotonus gestroi) is an endangered large insect in southwestern China and neighboring countries; however, limited information is available regarding its population genetics, hindering conservation efforts. Therefore, we investigated the population genetic structure and evolutionary history of C. gestroi in southwestern China. Twenty-five haplotypes were obtained from 47 specimens across five populations. The Dawei Mountain (DWS) population differed from other populations by a high genetic distance. Population structure analysis generated three distinct clades, corresponding to Hengduan Mountains (HM), Ailao Mountains (AM), and Dawei Mountains (DM), and high-level genetic diversity was found in two HM populations. Collectively, the strong genetic differentiation among populations might be due to limited gene flow, geographical isolation, and habitat fragmentation. Therefore, while developing a conservation strategy, HM, AM, and DM groups should be defined as separate management units. Additionally, the DWS population should be given priority protection due to its uniqueness and low genetic diversity.

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