Complete mitochondrial genomes of Boiga kraepelini and Hebius craspedogaster (Reptilia, Squamata, Colubridae) and their phylogenetic implications

By

Shan, Shuangshuang
Wang, Yu

Type

Article

Date of Publication

2022

Original Publication

ZooKeys

Volume

1124

Pages

191--206

Subjects

Colubrinae , mitogenomes , Natricinae , phylogenetic analysis , protein-coding genes

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/zookeys.1124.87861

 

Abstract

The complete sequence of the mitochondrial genome is a powerful tool for studying phylogenetic relationships and molecular evolution in various species. In this work, the mitogenomes of Boiga kraepelini and Hebius craspedogaster were sequenced and characterized for the first time. The lengths of the B. kraepelini and H. craspedogaster mitogenomes were 17,124 bp and 17,120 bp, respectively, and both included 13 protein-coding genes, 22 tRNAs, two rRNAs and two control regions. The arrangements of these mitochondrial genes were the same in B. kraepelini and H. craspedogaster. In addition, both genome compositions showed A+T bias (59.03%, 60.93%) and had positive AT skews (0.179, 0.117) and negative GC skews (-0.397, -0.348). The phylogenetic results illustrated a close relationship between B. kraepelini and the genus Lycodon. Moreover, H. craspedogaster was clustered with other Hebius snakes and closely related to other Natricinae species. These results will provide references for further research on the phylogeny of Colubridae.