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International Journal of Zoology and Applied Biosciences Research Article

Mitochondrial cytochrome B gene based phylogenetic analysis of nilgiri langur (Semnopithecus johnii) sampled from Periyar tiger reserve, Kerala

Meganath K.V, Muhasin Asaf, Bindya Liz Abraham, K S Chetan Nag, Renjith Sebastian, George Chandy, Muhammed Elayadeth-Meethal and Lali F. Anand

Year : 2025 | Volume: 10 | Issue: 1 | Pages: 10-14

doi: https://doi.org/10.55126/ijzab.2025.v10.i01.002

Received on: 03/12/2024

Revised on: 21/12/2024

Accepted on: 13/01/2025

Published on: 31/01/2025

  • Meganath K.V, Muhasin Asaf, Bindya Liz Abraham, K S Chetan Nag, Renjith Sebastian, George Chandy, Muhammed Elayadeth-Meethal and Lali F. Anand( 2025).

    Mitochondrial cytochrome B gene based phylogenetic analysis of nilgiri langur (Semnopithecus johnii) sampled from Periyar tiger reserve, Kerala

    . International Journal of Zoology and Applied Biosciences, 10( 1), 10-14.

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Abstract

The Western Ghats, a biodiversity hotspot in peninsular India, serve as a critical habitat for the vulnerable Nilgiri langur (Semnopithecus johnii), endemic to the region. This study explores the phylogenetic placement of S. johnii populations based on the mitochondrial CYTB gene (857 bp) sequences. Briefly, twelve faecal samples were collected from three sites within Periyar Tiger Reserve (PTR), Kerala. The DNA was isolated from the faecal samples and the CYTB gene was amplified and sequenced. The sequences were subjected to phylogenetic analyses using Maximum Likelihood, Bayesian Inference and Neighbour-Joining methods. All the methods revealed a well-supported monophyletic clade comprising PTR sequences and additional S. johnii and S. priam sequences retrieved from NCBI sampled from Aanamalai, Silent Valley and Walayar. The PTR populations clustered into three subclades with moderate support, while one sequence formed a distinct lineage, indicating genetic differentiation within populations. These findings corroborate earlier molecular studies, supporting the classification of S. johnii under the genus Semnopithecus.

Keywords

CYTB, monophyly, Nilgiri langur, Phylogenetic analysis.

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