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

Mitochondrial DNA B Resour. 2021 Apr 15;6(4):1392-1394. doi: 10.1080/23802359.2021.1910086.

Abstract

In this study, we assembled the complete mitochondrial genome of Yanglong yak (Bos grunniens) from Illumina sequencing reads. The mitochondrial genome is 16,323 bp long with an A + T-biased nucleotide composition, and encodes 13 protein-coding, 22 tRNA, and two rRNA genes along with a noncoding control region. In addition, its gene order is identical to those of the previously published mitochondrial genomes of its congeners. Phylogenetic analysis indicates that this breed is closely related to Datong yak, Pamir yak, Tianjun yak, polled yak, Seron yak, Sunnan yak, a series of Domestic Yak and wild yak, followed by Jinchuan yak and Gannan yak, and slightly far away from Bison and Bos taurus.

Keywords: Illumina sequencing; interspecific hybridization; iterative mapping; mitogenomics.

Grants and funding

This study was financially supported by China Agriculture Research System [CARS-37], Science and technology plan of Qinghai Province [2020-QY-218, 2020-QY-212], Earmarked Fund for China Agriculture Research System, and Innovation Project of Chinese Academy of Agricultural Sciences [CAAS-ASTIP-2014-LIHPS-01].