Phylogenetic relationships among Asiatic salamanders of the genus Salamandrella based on variability of nuclear genes

Phylogenetic relationships among Asiatic salamanders of the genus Salamandrella based on... Based on sequence variation of three nuclear genome genes (BDNF, POMC, and RAG1), the phylogenetic relationships among Asiatic salamanders of the genus Salamandrella, Siberian salamander (S. keyserlingii) and Schrenk salamander (S. schrenkii), were examined. Both species demonstrated high levels of heterozygosity determined by intraspecific polymorphism. Fixed interspecific differences were revealed at one nucleotide position of the RAG1 gene, and thus the level of interspecific divergence over the three genes constituted only 0.04%. Analysis of the RAG1 polymorphism across the whole range of S. keyserlingii showed that only one gene variant, encoding for modified RAG1 recombinase, had the highest distribution to the north of the Amur region (west and northeast of Siberia). It is possible that the changes in the RAG1 gene in Siberian salamander are of an adaptive nature. However, cases of interspecific hybridization were identified in Jewish autonomous oblast (JAO), which contains one of the range borders between the two Salamandrella species. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Phylogenetic relationships among Asiatic salamanders of the genus Salamandrella based on variability of nuclear genes

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Publisher
Pleiades Publishing
Copyright
Copyright © 2015 by Pleiades Publishing, Inc.
Subject
Biomedicine; Human Genetics; Animal Genetics and Genomics; Microbial Genetics and Genomics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1134/S102279541501007X
Publisher site
See Article on Publisher Site

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