The Sela macaque (Macaca selai) is a distinct phylogenetic species that evolved from the Arunachal macaque following allopatric speciation.

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Publisher: Elsevier B.V.
Document Type: Report; Brief article
Length: 310 words

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Keywords Arunachal macaque; Sela macaque; Eastern Himalayas; Sela mountain pass; Allopatric speciation; Taxonomic revision Highlights * Arunachal macaque showed ample genetic polymorphism, and evolved into two phylogenetic species. * Allopatric speciation driven by the sela mountain pass. * A new species, Macaca selai described based on phylogenetic species concept. * Novel findings imperative for conservation planning and management of Arunachal macaque. Abstract Arunachal macaque (M. munzala) is an endangered and recently discovered cercopithecine primate from Western Arunachal Pradesh, India. On genetic analyses of Arunachal macaques, we observed spatially distributed substantial inter-species genetic divergence among the samples collected from Arunachal Pradesh. The results suggested that Arunachal macaque evolved into two phylogenetic species about 1.96 mya following allopatric speciation by means of Sela mountain pass in Arunachal Pradesh, India. We describe - Sela macaque (M. selai) as a new macaque species that interestingly exhibited high intra-specific genetic variation and also harbors at least two conservation units. Further, we report the past demographic trajectories and quantify genetic variation required for taxonomic clarification. The present study also identifies gap areas for undertaking surveys to document the relic and unknown trans-boundary populations of macaques through multinational, multi-lateral cross border collaboration. Abbreviations Mya, Million years ago; MCMC, Markov chain Monte Carlo; PCRs, Polymerase chain reactions; TMRCA, the most recent common ancestor; QTP, Qinghai--Tibet Plateau Author Affiliation: (a) Zoological Survey of India, M Block, New Alipore, Kolkata 700053, West Bengal, India (b) Department of Zoology, University of Calcutta, Road, Kolkata 700019, West Bengal, India * Corresponding author at: Mammal and Osteology Section, Zoological Survey of India, New Alipore, Kolkata 700053, West Bengal, India. Article History: Received 22 June 2021; Revised 12 April 2022; Accepted 15 April 2022 (footnote)1 These authors contributed equally. Byline: Avijit Ghosh (a,b,1), Mukesh Thakur [thamukesh@gmail.com] (a,1,*), Sujeet K. Singh (a), Ritam Dutta (a), Lalit K. Sharma (a), Kailash Chandra (a), Dhriti Banerjee (a)

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Gale Document Number: GALE|A708782302