鸻形目线粒体全基因组及其系统发育分析

Complete Mitochondrial Genomes of and with Phylogenetic Analysis of Charadriiformes.

作者信息

Sun Kuo, Wang Qingxiong, Bian Kun, Li Feiran, Tang Jie, Suo Lijuan, Hou Xiang, Yang Chao

机构信息

Shaanxi Key Laboratory of Qinling Ecological Security, Shaanxi Institute of Zoology, Xi'an 710032, China.

Shaanxi Provincial Field Observation & Research Station for Golden Monkey, Giant Panda and Biodiversity, Xi'an 723400, China.

出版信息

Genes (Basel). 2024 Dec 21;15(12):1642. doi: 10.3390/genes15121642.

BACKGROUND

Plovers (Charadriidae), within the order of Charadriiformes, a group of modern birds distributed worldwide, are a frequent subject of molecular phylogenetic studies. While research on mitochondrial genome (mitogenome) variation within the family Charadriidae, especially intraspecific variation, is limited. Additionally, the monophyly of and the phylogenetic placement of remain contentious. Nevertheless, recent studies utilizing complete mitogenomes from available databases to construct phylogenetic trees for Charadriidae and Charadriiformes remain scarce.

METHODS

This study aims to explore mitogenome variation within and clarify the phylogenetic placement of We sequenced the complete mitogenome of six and one , and all additional available mitogenomes were integrated within Charadriiformes. The average complete mitogenome length of is 16,889 bp, and is 16,859 bp.

RESULTS

Our results support the suggestion that the monophyly of and is nested within Charadriidae. The phylogenetic analysis of Charadriiformes based on mitogenomes strongly supports the recognition of three major shorebird clades: Charadrii, Lari and Scolopaci, with Lari and Scolopaci identified as sister clades.

CONCLUSIONS

Our study reinforces the credibility of the inferred evolutionary relationships within Charadriidae and Charadriiformes.

背景

鸻科（Charadriidae）属于鸻形目（Charadriiformes），是一类分布于全球的现代鸟类，是分子系统发育研究的常见对象。然而，关于鸻科内部线粒体基因组（mitogenome）变异的研究，尤其是种内变异，却很有限。此外，[此处原文缺失相关物种名称]的单系性以及[此处原文缺失相关物种名称]的系统发育位置仍存在争议。尽管如此，利用现有数据库中的完整线粒体基因组构建鸻科和鸻形目的系统发育树的近期研究仍然很少。

方法

本研究旨在探索[此处原文缺失相关物种名称]的线粒体基因组变异，并阐明[此处原文缺失相关物种名称]的系统发育位置。我们对六个[此处原文缺失相关物种名称]和一个[此处原文缺失相关物种名称]的完整线粒体基因组进行了测序，并将所有其他可用的线粒体基因组整合到鸻形目中。[此处原文缺失相关物种名称]的平均完整线粒体基因组长度为16,889 bp，[此处原文缺失相关物种名称]为16,859 bp。