Varied diversification patterns and distinct demographic trajectories in Ethiopian montane forest bird (Aves: Passeriformes) populations separated by the Great Rift Valley
Varied diversification patterns and distinct demographic trajectories in Ethiopian montane forest bird (Aves: Passeriformes) populations separated by the Great Rift Valley
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被大裂谷分隔开的埃塞俄比亚山地森林鸟类（鸟类：雀形目）种群的多样化多样化模式和独特的人口统计轨迹
DOI：
10.1111/mec.16417
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发表时间：
2022
影响因子：
4.9
通讯作者：
Boissinot, Stéphane
中科院分区：
文献类型：
--
作者：
Manthey, Joseph D.;Bourgeois, Yann;Meheretu, Yonas;Boissinot, Stéphane
特定分类群的特征和外在的气候和地质力量都可能塑造种群分化和物种形成。在地理学和分类学的重点调查，分化可能同时发生的物种对相同的外部条件的反应。相反，当进化研究具有很大差异特征的类群时，种群分化和物种形成是复杂的，并由地球模板和物种特异性特征的相互作用形成。因此，重要的是要广泛地描述整个生命树的进化历史，特别是在特别多样化和受到人类活动压力的地理区域，如生物多样性热点。在这里，使用全基因组测序数据，我们表征了由低地地理屏障大裂谷（GRV）分隔的六种埃塞俄比亚高地森林鸟类种群的基因组变异。在所有六个物种中，GRV两侧的种群表现出显着但不同程度的遗传分化。物种的扩散能力与种群分化水平呈负相关。隔离与迁移模型表明不同的模式的人口分化和连接的人口之间的重点物种。我们发现，人口统计学的历史，估计每个人的物种和人口的变化，但在同一物种和采样区域的个人之间是一致的。我们发现，不同物种的基因组多样性相差半个数量级，这种差异在很大程度上可以用过去20万年来有效种群规模的调和平均值来解释。总的来说，我们发现，即使在高度分散的物种，如鸟类，GRV作为一个实质性的地理障碍。
Taxon‐specific characteristics and extrinsic climatic and geological forces may both shape population differentiation and speciation. In geographically and taxonomically focused investigations, differentiation may occur synchronously as species respond to the same external conditions. Conversely, when evolution is investigated in taxa with largely varying traits, population differentiation and speciation is complex and shaped by interactions of Earth's template and species‐specific traits. As such, it is important to characterize evolutionary histories broadly across the tree of life, especially in geographic regions that are exceptionally diverse and under pressures from human activities such as in biodiversity hotspots. Here, using whole‐genome sequencing data, we characterize genomic variation in populations of six Ethiopian Highlands forest bird species separated by a lowland biogeographic barrier, the Great Rift Valley (GRV). In all six species, populations on either side of the GRV exhibited significant but varying levels of genetic differentiation. Species’ dispersal ability was negatively correlated with levels of population differentiation. Isolation with migration models indicated varied patterns of population differentiation and connectivity among populations of the focal species. We found that demographic histories—estimated for each individual—varied by both species and population but were consistent between individuals of the same species and sampling region. We found that genomic diversity varied by half an order of magnitude across species, and that this variation could largely be explained by the harmonic mean of effective population size over the past 200,000 years. Overall, we found that even in highly dispersive species like birds, the GRV acts as a substantial biogeographic barrier.
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影响因子：
3.3
作者：
J. K. Pritchard;Matthew Stephens;Peter Donnelly
通讯作者：
J. K. Pritchard;Matthew Stephens;Peter Donnelly
DOI：
--
发表时间：
2014
期刊：
Proceedings of the Royal Society B: Biological Sciences
影响因子：
--
作者：
B. Weeks;S. Claramunt
通讯作者：
S. Claramunt
影响因子：
3.7
作者：
Willing EM;Dreyer C;van Oosterhout C
通讯作者：
van Oosterhout C
DOI：
--
发表时间：
2019
期刊：
影响因子：
--
作者：
Thibault Leroy;Yoann Anselmetti;Marie;S. Bérard;Laura Csukonyi;Maëva Gabrielli;Céline Scornavacca;B. Milá;C. Thébaud;B. Nabholz
通讯作者：
B. Nabholz
差异扩散影响两种同域池塘养殖蝾螈的种群结构和遗传分化模式
影响因子：
2.2
作者：
W. Peterman;T. Anderson;B. H. Ousterhout;D. Drake;R. D. Semlitsch;L. Eggert
通讯作者：
L. Eggert