Pre-historic and recent vicariance events shape genetic structure and diversity in endangered lion-tailed macaque in the Western Ghats: implications for conservation

Ram, M. S. and Marne, M. and Gaur, A. and Kumara, H. N. and Singh, M. and Kumar, A. and Umapathy, G. (2015) Pre-historic and recent vicariance events shape genetic structure and diversity in endangered lion-tailed macaque in the Western Ghats: implications for conservation. PLOS ONE, 10 (11).

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Official URL: http://doi.org/10.1371/journal.pone.0142597

Abstract

Genetic isolation of populations is a potent force that helps shape the course of evolution. However, small populations in isolation, especially in fragmented landscapes, are known to lose genetic variability, suffer from inbreeding depression and become genetically differentiated among themselves. In this study, we assessed the genetic diversity of lion-tailed macaques (Macaca silenus) inhabiting the fragmented landscape of Anamalai hills and examined the genetic structure of the species across its distributional range in the Western Ghats. We sequenced around 900 bases of DNA covering two mitochondrial regionshypervariable region-I and partial mitochondrial cytochrome b-from individuals sampled both from wild and captivity, constructed and dated phylogenetic trees. We found that the lion-tailed macaque troops in the isolated forest patches in Anamalai hills have depleted mitochondrial DNA diversity compared to troops in larger and continuous forests. Our results also revealed an ancient divergence in the lion-tailed macaque into two distinct populations across the Palghat gap, dating to 2.11 million years ago. In light of our findings, we make a few suggestions on the management of wild and captive populations.

Item Type: Article
Subjects: A Arts and Humanities > IDS
Divisions: Department of > Psychology
Depositing User: Shrirekha N
Date Deposited: 29 May 2019 07:52
Last Modified: 01 Jun 2019 11:06
URI: http://eprints.uni-mysore.ac.in/id/eprint/622

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