Phylogeography of mangrove pit vipers (Viperidae, Trimeresurus erythrurus‐purpureomaculatus complex). (25th August 2022)

• Record Type: Journal Article
• Authors: Chan, Kin Onn; Sind, Law Ing; Thong, Law Ingg; Ananthanarayanan, Sankar; Rasu, Shivaram; Aowphol, Anchalee; Rujirawan, Attapol; Anuar, Shahrul; Mulcahy, Daniel; Grismer, Jesse L.; Grismer, L. Lee
• Is Part Of: Zoologica scripta. Volume 51:Number 6(2022)
• Page Start: 664
• Page End: 675
• Publication Date: 2022-08-25
• Subjects: ancestral state reconstruction -- ecological niche modelling -- hybridization -- IBD -- IBE -- polymorphism; Zoology -- Periodicals; 590.5
• DOI: 10.1111/zsc.12562
• Languages: English
• ISSNs: 0300-3256

Abstract

Abstract: We present the first multilocus molecular phylogeny focused on mangrove pit vipers of the Trimeresurus erythrurus‐purpureomaculatus complex based on novel topotypic material and expanded geographic sampling. Previously inferred paraphyly of T. purpureomaculatus was resolved and our results demonstrate distinct phylogeographic patterns that are latitudinally stratified and consistent with isolation‐by‐distance and isolation‐by‐environment. A clear genetic break is detected at the Isthmus of Kra biogeographic divide and niche overlap among major genetic clades is limited. The association between colour polymorphisms and phylogeographic structure suggests that contemporary or historical introgression between T. erythrurus and T. purpureomaculatus could have occurred. This study provides a clear roadmap to guide future genomic research to improve our understanding of this charismatic, yet poorly studied group of snakes.