Sequencing and analysis of the complete mitochondrial genome of the Ussuri shrew (Sorex mirabilis) from China

Liu Zhu; Tian Xin-Min; Jin Zhi-Min; Dong Ming; Zhang Jun-Sheng; Du Jian-Yu

doi:10.1080/23802359.2017.1375873

Sequencing and analysis of the complete mitochondrial genome of the Ussuri shrew (Sorex mirabilis) from China

Mitochondrial DNA B Resour. 2017 Sep 11;2(2):645-647. doi: 10.1080/23802359.2017.1375873.

Authors

Liu Zhu¹, Tian Xin-Min^{1

2}, Jin Zhi-Min^{1

2}, Dong Ming¹, Zhang Jun-Sheng¹, Du Jian-Yu^{1

2}

Affiliations

¹ College of Life Science and Technology, Mudanjiang Normal University, Mudanjiang, P.R. China.
² College of Wildlife Resources, Northeast Forestry University, Harbin, P.R. China.

Abstract

The complete mitogenome sequence of the Ussuri shrew (Sorex mirabilis) was determined using long PCR. The genome was 17,315 bp in length and contained 13 protein-coding genes, two ribosomal RNA genes, 22 transfer RNA genes, one origin of L strand replication, and one control region. The overall base composition of the heavy strand is A (32.6%), C (25.2%), T (28.8%), and G (13.4%). The base compositions present clearly the A-T skew, which is most obviously in the control region and protein-coding genes. The extended termination-associated sequence domain, the central conserved domain and the conserved sequence block domain are defined in the mitochondrial genome control region of the Ussuri shrew. Mitochondrial genome analyses based on MP, ML, NJ, and Bayesian analyses yielded identical phylogenetic trees. The five Sorex species formed a monophyletic group with the high bootstrap value (100%) in all examinations.

Keywords: Control region; mitogenome; phylogenetic trees; the Ussuri shrew.