The complete mitochondrial genome sequence and phylogenetic analysis of Niangya yak (Bos grunniens)

Chun Huang; Qiang Zhang; Xiaoyun Wu; Yangla Dawa; Donghai Fu; Hui Jiang; Min Chu; Renqing Dingkao; Xian Guo; Wangdui Basang; Yangji Cidan; Ping Yan; Chunnian Liang

doi:10.1080/23802359.2019.1698996

The complete mitochondrial genome sequence and phylogenetic analysis of Niangya yak (Bos grunniens)

Mitochondrial DNA B Resour. 2019 Dec 13;5(1):202-203. doi: 10.1080/23802359.2019.1698996.

Authors

Chun Huang^{1

2}, Qiang Zhang³, Xiaoyun Wu^{1

2}, Yangla Dawa³, Donghai Fu^{1

2}, Hui Jiang³, Min Chu^{1

2}, Renqing Dingkao^{1

2}, Xian Guo^{1

2}, Wangdui Basang², Yangji Cidan³, Ping Yan^{1

2}, Chunnian Liang^{1

2}

Affiliations

¹ Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, People's Republic of China.
² Key Laboratory for Yak Breeding Engineering of Gansu Province, Chinese Academy of Agricultural Sciences, Lanzhou, China.
³ Institute of Husbandry and Pharmaceutical Sciences, Tebet Academy of Agricultural and Animal Husbandry Sciences, Lhasa, China.

Abstract

In the present study, we report the complete mitochondrial genome of Niangya yak (Bos grunniens) and its phylogenetic inferences. The complete mitochondrial DNA is a circular molecule with 16,322 bp length consisting of 13 protein-coding genes, 2 rRNA genes, 22 tRNA genes, and a non-coding control region(D-loop). Both ND6 and 7 tRNAs (tRNA-Pro, tRNA-Glu, tRNA-Tyr, tRNA-Cys, tRNA-Asn, tRNA-Ala and tRNA-Gln) are encoded on the light strand, and the remaining genes are encoded on the heavy strand. The overall nucleotide composition is A(33.73%), T(27.28%), C(25.80%), G(13.19%) respectively. The content of C + G is 38.99%. Given that yak is indispensable for the Tibetan people, it is important to understand the genetic status of the population for further systematic genetics, evolutionary significance and protection of genetic resources. Therefore, to understand the evolutionary history of Niangya yak, the complete mitochondrial genome of Niangya yak was sequenced and compared with the mitochondrial genome of closely related Bos species.

Keywords: (Bos grunniens); Niangya yak; mitochondrial genome; phylogenetic analysis; protection of genetic resources.