The complete mitochondrial genome of long-tailed red-toothed shrew (Episoriculus leucops) and implication of phylogenetic status

Abstract

We determined a complete mitochondrial genome of Episoriculus leucops. This mitogenome is a circular molecule with 16,838 bp in length, containing 13 protein-coding genes, 22 transfer RNA genes (tRNA), and two ribosomal RNA genes (rRNA). This mitochondrial genome has a base composition of 32.8% A, 29.2% T, 24.9% C, and 13.1% G. We reconstructed Bayesian phylogenetic tree by taking advantage of 19 species belonging to subfamily Soricinae. Phylogenetic tree shows that the long-tailed red-toothed shrew belongs to genus Episoriculus, and it is the closest relationship with E. caudatus. This mitochondrial genome provides an important resource for addressing taxonomic issues and studying molecular evolution.

Keywords

• bayesian phylogenetic tree
• phylogenetic analysis
• evolution