您好，欢迎访问贵州省农业科学院 机构知识库！
贵州省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

DNA Barcoding of Fish Species Diversity in Guizhou, China

文献类型： 外文期刊

作者： Tang, Qian 1 ; Deng, Lei 1 ; Luo, Qi 1 ; Duan, Qian 1 ; Wang, Xue 2 ; Zhang, Renyi 1 ;

作者机构： 1.Guizhou Normal Univ, Sch Life Sci, Guiyang 550025, Peoples R China

2.Guizhou Acad Agr Sci, Fisheries Res Inst, Guiyang 550025, Peoples R China

关键词： fish; DNA barcode; species delimitation; Guizhou province

期刊名称：DIVERSITY-BASEL （ 影响因子：2.4； 五年影响因子：2.5 ）

ISSN：

年卷期： 2023 年 15 卷 2 期

页码：

收录情况： SCI

摘要： Guizhou is an important ecological barrier in the upper reaches of the Yangtze River and the Pearl River basins with abundant fish species. However, fish from these regions are threatened by anthropogenic activities, including overfishing and habitat destruction. Here, we assessed the fish diversity including more than half of the species from the region using DNA barcoding (partial sequence of cytochrome c oxidase subunit I (COI) gene). We obtained 800 mitochondrial COI barcode sequences from 82 genera, 18 families and 8 orders of fishes. The average Kimura two-parameter (K2P) distances within species and genera were 0.35% and 5.44%, respectively. The average interspecific distance was 15.54 times higher than the mean intraspecific distance. Moreover, DNA barcodes revealed 175 operational taxonomic units (OTUs) based on consensus demarcation schemes. Barcoding gaps were detected in 94.81% of morphospecies. Three fish species (Schistura fasciolata, Vanmanenia pingchowensis, and Misgurnus dabryanus) have considerable intraspecific variability, and each was divided into multiple molecular operational taxonomic units (MOTUs) using molecular definition methods (Automatic Barcode Gap Discovery, Refined Single Linkage, General Mixed Yule Coalescent, and Poisson Tree Processes), possibly indicating the occurrence of cryptic species. Altogether, our study reveals the complex diversity of fish species in Guizhou Province, serving as a reference for the conservation and monitoring of fish species in this region.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：贵州省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台