The Munduruku marmoset: a new monkey species from southern Amazonia
The Munduruku marmoset: a new monkey species from southern Amazonia
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DOI：
10.7717/peerj.7019
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发表时间：
2019-07-25
期刊：
影响因子：
2.7
通讯作者：
Hrbek, Tomas
中科院分区：
文献类型：
--
作者：
Costa-Araujo, Rodrigo;de Melo, Fabiano R.;Hrbek, Tomas
虽然大西洋森林狨猴（Callithrix spp.）是研究得最好的新热带灵长类动物之一，但亚马逊狨猴（Callibella humilis, Cebuella spp.和Mico spp.）却鲜为人知。甚至物种多样性和分布也尚未得到适当的确定，因为目前科学收集的实地数据和材料不允许对亚马逊狨猴进行全面的分类研究。2015年至2018年，我们在南亚马逊地区的重点区域开展了10次狨猴考察。在其中一个地区——塔帕若斯-贾曼西姆交汇处——我们记录了一种具有独特皮毛色素沉着模式的狨猴，这表明它们可能代表着一个新物种。我们使用一个综合的分类框架来检验这一假设，包括系统基因组数据（ddRAD序列）、毛皮色素沉着特征和分布记录。研究发现，tapajos - jamanjm区间北部的狨猴具有独特的皮毛色素特征，在贝叶斯和最大似然系统发育中形成Glade（100%支持），并且发生在与其他类群隔河隔离的区域。这些证据线的整合使我们描述了Mico属的一种新的狨猴物种，以巴西帕拉州西南部tapajos - jamanjm交汇处的Munduruku美洲印第安人命名。
Although the Atlantic Forest marmosets (Callithrix spp.) are among the best studied Neotropical primates, the Amazonian marmosets (Callibella humilis, Cebuella spp. and Mico spp.) are much less well-known. Even species diversity and distributions are yet to be properly determined because field data and materials currently available in scientific collections do not allow comprehensive taxonomic studies of Amazonian marmosets. From 2015 to 2018, we conducted 10 expeditions in key-areas within southern Amazonia where little or no information on marmosets was available. In one such region-the Tapajos-Jamanxim interfluve-we recorded marmosets with a distinctive pelage pigmentation pattern suggesting they could represent a new species. We tested this hypothesis using an integrative taxonomic framework that included phylogenomic data (ddRAD sequences), pelage pigmentation characters, and distribution records. We found that the marmosets of the northern Tapajos-Jamanxim interfluve have unique states in pelage pigmentation characters, form a Glade (100% support) in our Bayesian and Maximum-Likelihood phylogenies, and occur in an area isolated from other taxa by rivers. The integration of these lines of evidence leads us to describe a new marmoset species in the genus Mico, named after the Munduruku Amerindians of the Tapajos-Jamanxim interfluve, southwest of Para State, Brazil.