Genetic variation and phylogeographic structure of the cotton aphid, Aphis gossypii, based on mitochondrial DNA and microsatellite markers

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 of A. gossypii populations, we used 10 nuclear microsatell...

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Bibliographic Details
Published in:Scientific reports Vol. 7; no. 1; pp. 1920 - 14
Main Authors: Wang, Xing-Ya, Yang, Xian-Ming, Lu, Bin, Zhou, Li-Hong, Wu, Kong-Ming
Format: Journal Article
Language:English
Published: London Nature Publishing Group UK 15.05.2017
Nature Publishing Group
Nature Portfolio
Subjects:
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45/23
45/77
631/158/2452
631/208/457
631/601/1466
Animals
Aphids - classification
Aphids - genetics
Aphis gossypii
Bayes Theorem
China
Climatic zones
Cotton
DNA, Mitochondrial
Genetic distance
Genetic diversity
Genetic markers
Genetic structure
Genetic Variation
Genetics, Population
Genotype & phenotype
Haplotypes
Humanities and Social Sciences
Microsatellite Repeats
Microsatellites
Mitochondrial DNA
multidisciplinary
Pests
Phylogeny
Phylogeography
Population genetics
Population structure
Science
Science (multidisciplinary)
China
ISSN:2045-2322, 2045-2322
Online Access:Get full text
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Summary: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 of A. gossypii populations, we used 10 nuclear microsatellite loci (SSR) and two mitochondrial gene sequences ( COI and Cytb ) to investigate genetic diversity and population structure of A. gossypii populations 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 in A. gossypii populations of China. The present work can help us to develop strategies for managing this pest.
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ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-017-02105-4