Genetic variation and phylogeographic structure of the cotton aphid, Aphis gossypii, based on mitochondrial DNA and microsatellite markers.
Genetic variation and phylogeographic structure of the cotton aphid, Aphis gossypii, based on mitochondrial DNA and microsatellite markers.
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基于线粒体DNA和微卫星标记的棉蚜Aphis gossypii的遗传变异和系统发育地理学结构
DOI：
10.1038/s41598-017-02105-4
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发表时间：
2017-05-15
影响因子：
4.6
通讯作者：
Wu KM
中科院分区：
文献类型：
--
作者：
Wang XY;Yang XM;Lu B;Zhou LH;Wu KM
棉蚜是世界上最重要的农业害虫之一，在主要农作物产区可造成严重的经济损失。阐明了A的遗传分化、遗传结构和人口统计学史等问题。利用10个核微卫星标记（SSR）和2个线粒体基因序列（COI和Cytb）对棉A.对中国不同气候带33个样点的棉蚜种群进行了研究。SSR和mtDNA数据表明，低到中等水平的遗传多样性。线粒体单倍型的星形网络表明中国棉蚜的母系祖先可能起源于新疆。POPTREE，结构和主坐标分析（PCoA）揭示了两个遗传集群：东部和西部地区组。距离隔离（IBD）结果显示，地理距离和遗传距离之间的正相关性在广大的东部地区，而不是在西部地区。中性检验和错配分布分析为最近在大多数人群中的快速扩张提供了强有力的证据。在A中未发现遗传瓶颈。中国的棉株。目前的工作可以帮助我们制定管理这种害虫的策略。
Aphis gossypii, one of the most important agricultural pests in the world, can cause serious economic losses in the main crop-producing areas. To clarify issues such as the genetic differentiation, genetic structure, and demographic history ofA. gossypiipopulations, we used 10 nuclear microsatellite loci (SSR) and two mitochondrial gene sequences (COIandCytb) to investigate genetic diversity and population structure ofA. gossypiipopulations that were collected from 33 sampling sites in China from different climatic zones. SSR and mtDNA data suggested low to moderate levels of genetic diversity. A star-shaped network of mtDNA haplotypes indicated that the maternal ancestor of China cotton aphids likely originated in Xinjiang. The POPTREE, STRUCTURE and principal coordinate analysis (PCoA) revealed two genetic clusters: an eastern and a western region group. Isolation by distance (IBD) results showed a positive correlation between geographic distance and genetic distance in the vast eastern region but not in the western region. Neutrality testing and mismatch distribution analysis provided strong evidence for a recent rapid expansion in most populations. Genetic bottleneck was not detected inA. gossypiipopulations of China. The present work can help us to develop strategies for managing this pest.