Geographic distribution of microsatellite alleles in geladas (Primates, Cercopithecidae): Evidence for three evolutionary units

Geographic distribution of microsatellite alleles in geladas (Primates, Cercopithecidae): Evidence for three evolutionary units
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狒狒(灵长类、鹿科)微卫星等位基因的地理分布:三个进化单位的证据

DOI:
10.1111/zsc.12451
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发表时间:
2020
期刊:
影响因子:
2.5
通讯作者:
Moges, Amera
Moges, Amera
中科院分区:
生物学2区
文献类型:
--
作者:
Trede, Franziska;Lemkul, Anna;Atickem, Anagaw;Beehner, Jacinta C.;Bergman, Thore J.;Burke, Ryan;Fashing, Peter J.;Knauf, Sascha;Mekonnen, Addisu;Moges, Amera

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狒狒(Theropithecus geladaRüppell,1835)的亚种分类和分布仍然不确定。最近基于线粒体序列数据的分子研究揭示了一个地理结构,三个种群,表明有三个进化单位的狒狒。然而,线粒体的分布并不总是恢复人口关系,特别是在分类群与隔离和基因流的复杂历史。因此,我们基于来自其地理范围内的43个样本的20个微卫星位点分析了全球狮尾蕉种群的核遗传种群结构。FST值,结构分析和主坐标分析(PCoA)证实了与线粒体种群结构相对应的三向种群结构。因此,我们的分析提供了额外的支持,三个进化单位狒狒,对应于(a)一个北方(塔纳湖以北,主要在西米恩山脉,以前被归类为Theropithecus gelada geladaRüppell,1835年),(B)一个中央(位于阿迪斯和塔纳湖以东的高地之间,以前被归类为长尾猴,1863)和(c)南部(南部的裂谷,以前暂时归类为Theropithecus gelada arsi Shotake等,2016年,人类学科学,124,157)人口。这些结果为未来的保护决策铺平了道路,并强调了狒狒种群边界需要更细粒度的遗传采样和表型分析,特别是它们的分类排名。
The subspecific taxonomy and distribution of geladas (Theropithecus geladaRüppell, 1835) remains uncertain. Recent molecular studies based on mitochondrial sequence data revealed a geographically structured, three‐deme population, suggesting that there are three evolutionary units of geladas. However, mitochondrial distributions do not always recover population relationships, particularly in taxa with a complex history of isolation and gene flow. We therefore analysed the nuclear genetic population structure of the global gelada population based on 20 microsatellite loci in 43 samples from across its geographic range.FSTvalues, a STRUCTURE analysis and a principal coordinate analysis (PCoA) confirmed the three‐deme population structure corresponding to the mitochondrial population structure. Therefore, our analyses provide additional support for three evolutionary units in geladas, corresponding to (a) a northern (north of Lake Tana, primarily in the Simien Mountains, previously classified asTheropithecus gelada geladaRüppell, 1835), (b) a central (between Addis Ababa and the highlands east of Lake Tana, previously classified asTheropithecus gelada obscurusHeuglin, 1863) and (c) a southern (south of the Rift Valley, previously tentatively classified asTheropithecus gelada arsiShotake et al., 2016,Anthropological Science, 124, 157) population. These results pave the way for future conservation decisions and highlight that the gelada population boundaries need more fine‐grained genetic sampling and phenotypic analyses, in particular for their taxonomic ranking.
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