Research on genetic diversity and population structure of Capitulum mitella in the Western Taiwan Strait based on mitochondrial 16S rRNA sequences

IF 0.7 4区生物学 Q4 MARINE & FRESHWATER BIOLOGY

Crustaceana Pub Date : 2023-10-27 DOI:10.1163/15685403-bja10332

Bingpeng Xing, Qiong Wu, Qianqian Zhou, Siwei Liu, Rouxin Sun, Xiaoyin Chen, Peng Xiang, Chunguang Wang, Yanguo Wang

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Abstract

Abstract Capitulum mitella is an important species in the intertidal ecosystem and in the economy in China. This study explored the genetic diversity and population structure of C. mitella using mitochondrial 16S ribosomal subunit (16S rRNA) gene sequences. The researchers sequenced a 527 bp fragment of 16S rRNA from 390 samples collected from six localities along Western Taiwan Strait and identified 45 distinct haplotypes with an average haplotype diversity ( h ) of 0.451 and an average nucleotide diversity ( π ) of 0.00124. The pairwise statistics and AMOVA indicated a lack of significant population structure. The results indicated a recent expansion of the population of C. mitella in the study area. This expansion, combined with the species’ high dispersal capabilities, limited physical barriers, and the influence of oceanic currents, may be the factors contributing to its current phylogeographic structure. This study provides particularly important information for managing and protecting the resources of C. mitella in Southern China.

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基于线粒体16S rRNA序列的台湾海峡西部二甲小头草遗传多样性及种群结构研究

摘要半头草(Capitulum mitella)是中国潮间带生态系统和经济中的重要物种。本研究利用线粒体16S核糖体亚基(16S rRNA)基因序列研究了mitella的遗传多样性和群体结构。研究人员从台湾海峡西部6个地区收集的390份样本中测序了一个527 bp的16S rRNA片段，鉴定出45种不同的单倍型，平均单倍型多样性(h)为0.451，平均核苷酸多样性(π)为0.00124。两两统计和方差分析表明种群结构不明显。结果表明，研究区米特拉蝇种群近期有扩大的趋势。这种扩张，加上物种的高扩散能力、有限的物理屏障和洋流的影响，可能是造成其当前系统地理结构的因素。本研究为中国南方密草资源的管理和保护提供了重要的信息。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Crustaceana 生物-海洋与淡水生物学

CiteScore

1.30

自引率

33.30%

发文量

审稿时长

3 months

期刊介绍： Crustaceana is a leading journal in the world on crustacean research, including the latest papers from all branches of zoology. It provides up-to-date information on aspects such as taxonomy, zoogeography, ecology, physiology, anatomy, genetics, palaeontology, and biometry, and covers all groups of Crustacea. Boasting a large international circulation, Crustaceana provides its readers with an abstract for each article.