Genetic Diversity of the Ankober Serin (Crithagra ankoberensis) at Simien Mountains National Park and Guassa Community Conservation Area, Ethiopia

IF 0.6 4区生物学 Q4 ZOOLOGY

African Zoology Pub Date : 2021-10-02 DOI:10.1080/15627020.2021.2006078

Abebayehu Dessalegn, M. Balakrishnan, T. Töpfer, L. Podsiadlowski, Tilaye Wube

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引用次数: 0

Abstract

The genetic diversity of the Ethiopian endemic Ankober Serin Crithagra ankoberensis was studied in two populations at Simien Mountains National Park and Guassa Community Conservation Area using five microsatellite markers. Blood samples were taken from 16 and 14 birds, respectively. Three molecular markers resulted in relatively low, though noticeable differences between the two populations. The analysis also showed the presence of shared alleles, indicating current gene flow between the two populations. Two markers from Simien Mountains National Park and two markers from Guassa Community Conservation Area revealed obvious deviations from the Hardy–Weinberg equilibrium. We interpret these deviations in both populations as limited population size and restricted gene flow. The genetic differentiation between the two populations thus could be explained by their geographical separation (more than 360 km), reinforced by barriers, such as steep mountains, deep valleys and extensive plains (isolation by distance). On the other hand, a stepping-stone mechanism between geographically intermediate populations across small distances might explain the observed gene flow. Further studies are needed to better reconstruct the biogeographic history and conservation needs of the Ankober Serin populations in Ethiopia.

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埃塞俄比亚塞米恩山国家公园和瓜萨社区保护区Ankober Serin (Crithagra ankoberensis)的遗传多样性

利用5个微卫星标记，在四面山国家公园和瓜萨社区保护区的两个种群中研究了埃塞俄比亚特有的Ankober Serin Crithagra ankoberensis的遗传多样性。分别从16只和14只鸟身上采集了血样。三个分子标记导致相对较低，尽管两个群体之间存在显著差异。分析还显示了共享等位基因的存在，表明目前两个群体之间的基因流动。四米恩山脉国家公园的两个标记和瓜萨社区保护区的两个标志显示出与Hardy-Weinberg平衡的明显偏差。我们将两个群体中的这些偏差解释为群体规模有限和基因流动受限。因此，这两个种群之间的遗传差异可以用它们的地理分隔（超过360公里）来解释，这些分隔被陡峭的山脉、深谷和广阔的平原（因距离而隔离）等障碍所加强。另一方面，地理上的中间种群之间跨越小距离的垫脚石机制可能解释了观察到的基因流动。需要进一步的研究来更好地重建埃塞俄比亚Ankober Serin种群的生物地理历史和保护需求。

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来源期刊

African Zoology 生物-动物学

CiteScore

2.60

自引率

9.10%

发文量

审稿时长

>12 weeks

期刊介绍： African Zoology , a peer-reviewed research journal, publishes original scientific contributions and critical reviews that focus principally on African fauna in terrestrial, freshwater, and marine ecosystems. Research from other regions that advances practical and theoretical aspects of zoology will be considered. Rigorous question-driven research in all aspects of zoology will take precedence over descriptive research. The Journal publishes full-length papers, critical reviews, short communications, letters to the editors as well as book reviews. Contributions based on purely observational, descriptive or anecdotal data will not be considered. The Journal is produced by NISC in association with the Zoological Society of South Africa (ZSSA). Acceptance of papers is the responsibility of the Editors-in-Chief in consultation with the Editors and members of the Editorial Advisory Board. All views expressed are those of the author and not necessarily those of the Editors or the Department.