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Type: Journal article
Title: Variation among 532 genomes unveils the origin and evolutionary history of a global insect herbivore
Author: You, M.
Ke, F.
You, S.
Wu, Z.
Liu, Q.
He, W.
Baxter, S.W.
Yuchi, Z.
Vasseur, L.
Gurr, G.M.
Ward, C.M.
Cerda, H.
Yang, G.
Peng, L.
Jin, Y.
Xie, M.
Cai, L.
Douglas, C.J.
Isman, M.B.
Goettel, M.S.
et al.
Citation: Nature Communications, 2020; 11(1):2321-1-2321-8
Publisher: Springer Nature
Issue Date: 2020
ISSN: 2041-1723
Statement of
Minsheng You … Simon W. Baxter … Christopher M. Ward … et al.
Abstract: The diamondback moth, Plutella xylostella is a cosmopolitan pest that has evolved resistance to all classes of insecticide, and costs the world economy an estimated US $4-5 billion annually. We analyse patterns of variation among 532 P. xylostella genomes, representing a worldwide sample of 114 populations. We find evidence that suggests South America is the geographical area of origin of this species, challenging earlier hypotheses of an Old-World origin. Our analysis indicates that Plutella xylostella has experienced three major expansions across the world, mainly facilitated by European colonization and global trade. We identify genomic signatures of selection in genes related to metabolic and signaling pathways that could be evidence of environmental adaptation. This evolutionary history of P. xylostella provides insights into transoceanic movements that have enabled it to become a worldwide pest.
Keywords: Biological evolution
Rights: © The Author(s) 2020. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit
DOI: 10.1038/s41467-020-16178-9
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Appears in Collections:Environment Institute publications

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