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Relatively recent evolution of pelage coloration in Colobinae: phylogeny and phylogeography of three closely related langur species.

ABSTRACT: To understand the evolutionary processes leading to the diversity of Asian colobines, we report here on a phylogenetic, phylogeographical and population genetic analysis of three closely related langurs, Trachypithecus francoisi, T. poliocephalus and T. leucocephalus, which are all characterized by different pelage coloration predominantly on the head and shoulders. Therefore, we sequenced a 395 bp long fragment of the mitochondrial control region from 178 T. francoisi, 54 T. leucocephalus and 19 T. poliocephalus individuals, representing all extant populations of these three species. We found 29 haplotypes in T. francoisi, 12 haplotypes in T. leucocephalus and three haplotypes in T. poliocephalus. T. leucocephalus and T. poliocephalus form monophyletic clades, which are both nested within T. francoisi, and diverged from T. francoisi recently, 0.46-0.27 (T. leucocephalus) and 0.50-0.25 million years ago (T. poliocephalus). Thus, T. francoisi appears as a polyphyletic group, while T. leucocephalus and T. poliocephalus are most likely independent descendents of T. francoisi that are both physically separated from T. francoisi populations by rivers, open sea or larger habitat gaps. Since T. francoisi populations show no variability in pelage coloration, pelage coloration in T. leucocephalus and T. poliocephalus is most likely the result of new genetic mutations after the split from T. francoisi and not of the fixation of different characters derived from an ancestral polymorphism. This case study highlights that morphological changes for example in pelage coloration can occur in isolated populations in relatively short time periods and it provides a solid basis for studies in related species. Nevertheless, to fully understand the evolutionary history of these three langur species, nuclear loci should be investigated as well.

SUBMITTER: Liu Z

PROVIDER: S-EPMC3629164 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature

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Relatively recent evolution of pelage coloration in Colobinae: phylogeny and phylogeography of three closely related langur species.

Liu Zhijin Z Wang Boshi B Nadler Tilo T Liu Guangjian G Sun Tao T Huang Chengming C Zhou Qihai Q Zhou Jiang J Que Tengcheng T Wang Ziming Z Roos Christian C Li Ming M

PloS one 20130417 4

To understand the evolutionary processes leading to the diversity of Asian colobines, we report here on a phylogenetic, phylogeographical and population genetic analysis of three closely related langurs, Trachypithecus francoisi, T. poliocephalus and T. leucocephalus, which are all characterized by different pelage coloration predominantly on the head and shoulders. Therefore, we sequenced a 395 bp long fragment of the mitochondrial control region from 178 T. francoisi, 54 T. leucocephalus and 1 ...[more]

PMID: 23613895

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Project description:Clarifying the scientific identity of ancient biological names in historical archives is essential to understand traditional knowledge and literary metaphors of animals in human culture. Adopting a cross-disciplinary (Primatology, Linguistics, Historiography, Historical Sociology) analysis, we developed a theoretical framework for studies of the scientific identity of Chinese primate traditional names (e.g., Yuan ) throughout history, and interpret the historical evolution of the understanding of the Chinese word Yuan. Presently, the Chinese generally understand Yuan to be a gibbon (or "ape" in a broader sense), but this statement has many contradictions with the understanding of the word in relevant historical discourse. We review and comment on key evidence to support the traditional understanding of Yuan as a gibbon (Hylobatidae) and clarify the historical and current thought concerning Yuan. We find that the referent of the word Yuan has changed from "François' langur (Trachypithecus francoisi) with long limbs" to the "long-armed ape or gibbon" known today through two major changes in the idea of Yuan. One transformation in the conceptualization of Yuan took place during the Tang-Song period, with the other beginning at the end of the nineteenth century and ending in the 1950s. An interaction between the conceptualization of animals and power (e.g., political opportunity; cultural movement toward learning western sciences in the semi-colonial era) played an important role in these two diachronic changes to the idea of Yuan. In contrast to the clear linear relation between a species and its Latin name, our study indicates that one traditional name can represent varying animal species in China. Our findings exemplify the implications of the sociocultural and linguistic basis for the species identification of primate names found in historical discourse for historical zoogeography, our understanding of the intricate cultural and religious connections between humans and primates, and efforts to decolonize primatology.Supplementary informationThe online version contains supplementary material available at 10.1007/s10764-022-00302-1.

Dataset Information

Relatively recent evolution of pelage coloration in Colobinae: phylogeny and phylogeography of three closely related langur species.

Publications

Relatively recent evolution of pelage coloration in Colobinae: phylogeny and phylogeography of three closely related langur species.

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