Complete mitochondrial genomes reveal the phylogenetic relationships of Duoma with eight representative sheep breeds and two ovis species

The Ovis aries Duoma breed is one of the most important alpine grassland-type sheep breeds in China. In this current study, we first reported the complete mitochondrial genome of Duoma sheep. Mitochondrial genome is 16,618 bp in length and exhibits the same typical structure as the other published sheep breeds. The genome contains 37 genes (22 tRNA, two rRNA, and 13 protein-coding genes (PCGs)) and a control region (D-loop region). Phylogenetic analysis shows that the Duoma sheep breed is closer to Ganjia sheep. Our findings will help the further evolution and conservation studies of Duoma sheep.绵羊（Ovis aries）多玛品种是中国最重要的高山草原型绵羊品种之一。本研究首次报道了多玛绵羊的完整线粒体基因组。该线粒体基因组全长16618 bp，其结构与已发表的其他绵羊品种一致，具备典型的线粒体基因组特征。该基因组包含37个基因，分别为22个转运RNA（tRNA）、2个核糖体RNA（rRNA）以及13个蛋白质编码基因（PCGs），同时包含一个控制区（D-loop区）。系统发育分析结果显示，多玛绵羊与甘加绵羊的亲缘关系更近。本研究结果可为多玛绵羊的后续演化及保护研究提供助力。