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利用线粒体序列揭示泰国种子蝽(斯科波利,1763年)(半翅目:长蝽科)的遗传变异

Unveiling Genetic Variation in the Seed Bug (Scopoli, 1763) (Hemiptera: Lygaeidae) in Thailand Using Mitochondrial Sequence.

作者信息

Pilap Warayutt, Pradit Nakorn, Jaroenchaiwattanachote Chavanut, Saijuntha Jatupon, Kongbuntad Watee, Tawong Wittaya, Tantrawatpan Chairat, Saijuntha Weerachai

机构信息

Walai Rukhavej Botanical Research Institute, Mahasarakham University, Maha Sarakham 44150, Thailand.

Center of Excellence in Biodiversity Research, Mahasarakham University, Maha Sarakham 44150, Thailand.

出版信息

Biology (Basel). 2025 Aug 8;14(8):1022. doi: 10.3390/biology14081022.

DOI:10.3390/biology14081022
PMID:40906212
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12383896/
Abstract

is a phytophagous insect widely distributed across Asia, Europe, and Africa, yet its genetic variation remains poorly understood. This study presents the first comprehensive analysis of the genetic diversity and structure of in Thailand using mitochondrial cytochrome c oxidase subunit 1 () sequences from 202 individuals across 27 localities. A total of 58 haplotypes were identified, with high haplotype and nucleotide diversity observed, suggesting substantial genetic variation. The haplotype network revealed a star-like topology, indicating recent population expansion or ongoing gene flow. Neutrality tests and mismatch distribution analyses showed no strong signal of recent demographic expansion. Phylogenetic analysis confirmed that all Thai specimens clustered within a well-supported clade along with sequences from India, Namibia, and Europe. Analysis of Molecular Variance (AMOVA) revealed significant genetic differentiation among four continental groups, indicating that geographic isolation and restricted gene flow have shaped genetic divergence at a broad biogeographic scale. Further research using highly polymorphic nuclear markers is recommended to better resolve the population structure and evolutionary history of in Thailand and beyond.

摘要

是一种广泛分布于亚洲、欧洲和非洲的植食性昆虫,但其遗传变异仍知之甚少。本研究首次利用来自泰国27个地点的202个个体的线粒体细胞色素c氧化酶亚基1()序列,对泰国的遗传多样性和结构进行了全面分析。共鉴定出58个单倍型,观察到高单倍型和核苷酸多样性,表明存在大量遗传变异。单倍型网络显示出星状拓扑结构,表明近期种群扩张或正在进行的基因流动。中性检验和错配分布分析未显示近期人口扩张的强烈信号。系统发育分析证实,所有泰国标本与来自印度、纳米比亚和欧洲的序列一起聚集在一个得到充分支持的类群中。分子方差分析(AMOVA)显示四个大陆群体之间存在显著的遗传分化,表明地理隔离和有限的基因流动在广泛的生物地理尺度上塑造了遗传分歧。建议进一步使用高度多态的核标记进行研究,以更好地解析泰国及其他地区的种群结构和进化历史。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca5b/12383896/30719ba41e5c/biology-14-01022-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca5b/12383896/c44d86a38ec3/biology-14-01022-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca5b/12383896/c89351d1397b/biology-14-01022-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca5b/12383896/69f8fbe6031c/biology-14-01022-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca5b/12383896/eefee5e81696/biology-14-01022-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca5b/12383896/7e9181180c93/biology-14-01022-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca5b/12383896/30719ba41e5c/biology-14-01022-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca5b/12383896/c44d86a38ec3/biology-14-01022-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca5b/12383896/c89351d1397b/biology-14-01022-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca5b/12383896/69f8fbe6031c/biology-14-01022-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca5b/12383896/eefee5e81696/biology-14-01022-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca5b/12383896/7e9181180c93/biology-14-01022-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca5b/12383896/30719ba41e5c/biology-14-01022-g006.jpg

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