Jiang Lichun, Peng Liqing, Tang Min, You Zhangqiang, Zhang Min, West Andrea, Ruan Qiping, Chen Wei, Merilä Juha
Key Laboratory for Molecular Biology and Biopharmaceutics, School of Life Science and Technology Mianyang Normal University Mianyang Sichuan China.
Ecological Security and Protection Key Laboratory of Sichuan Province Mianyang Normal University Mianyang Sichuan China.
Ecol Evol. 2019 Jul 9;9(15):8813-8828. doi: 10.1002/ece3.5433. eCollection 2019 Aug.
This is the first study to describe the mitochondrial genome of the Himalayan Griffon, , which is an Old World vulture belonging to the family Accipitridae and occurring along the Himalayas and the adjoining Tibetan Plateau. Its mitogenome is a closed circular molecule 17,381 bp in size containing 13 protein-coding genes, 22 tRNA coding genes, two rRNA-coding genes, a control region (CR), and an extra pseudo-control region (CCR) that are conserved in most Accipitridae mitogenomes. The overall base composition of the mitogenome is 24.55% A, 29.49% T, 31.59% C, and 14.37% G, which is typical for bird mitochondrial genomes. The alignment of the Accipitridae species control regions showed high levels of genetic variation and abundant AT content. At the 5' end of the domain I region, a long continuous poly-C sequence was found. Two tandem repeats were found in the pseudo-control regions. Phylogenetic analysis with Bayesian inference and maximum likelihood based on 13 protein-coding genes indicated that the relationships at the family level were (Falconidae + (Cathartidae + (Sagittariidae + (Accipitridae + Pandionidae))). In the Accipitridae clade, is more closely related to than to . The complete mitogenome of provides a potentially useful resource for further exploration of the taxonomic status and phylogenetic history of species.
这是第一项描述喜马拉雅兀鹫线粒体基因组的研究。喜马拉雅兀鹫是一种旧大陆秃鹫,属于鹰科,分布于喜马拉雅山脉及毗邻的青藏高原。其线粒体基因组是一个大小为17381 bp的闭合环状分子,包含13个蛋白质编码基因、22个tRNA编码基因、两个rRNA编码基因、一个控制区(CR)和一个额外的假控制区(CCR),这些在大多数鹰科线粒体基因组中是保守的。该线粒体基因组的总体碱基组成为24.55%的A、29.49%的T、31.59%的C和14.37%的G,这是鸟类线粒体基因组的典型特征。鹰科物种控制区的比对显示出高水平的遗传变异和丰富的AT含量。在结构域I区域的5'端,发现了一个长的连续多聚C序列。在假控制区发现了两个串联重复序列。基于13个蛋白质编码基因的贝叶斯推断和最大似然法的系统发育分析表明,科级水平的关系为(隼科+(美洲鹫科+(蛇鹫科+(鹰科+鹗科)))。在鹰科分支中,喜马拉雅兀鹫与[此处原文缺失相关物种名]的亲缘关系比与[此处原文缺失相关物种名]更近。喜马拉雅兀鹫的完整线粒体基因组为进一步探索该物种的分类地位和系统发育历史提供了潜在有用的资源。