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Variation among 532 genomes unveils the origin and evolutionary history of a global insect herbivore

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.

Año de publicación:

2020

Keywords:

    Fuente:

    scopusscopus

    Tipo de documento:

    Article

    Estado:

    Acceso abierto

    Áreas de conocimiento:

    • Evolución

    Áreas temáticas:

    • Historia natural de los organismos
    • Microorganismos, hongos y algas
    • Arthropoda

    Contribuidores:

    Lin L.Lin L.
    Zhao Q.Zhao Q.
    Yang H.Yang H.
    Goettel M.S.Goettel M.S.
    Liao J.Liao J.
    Bai J.Bai J.
    Baxter S.W.Baxter S.W.
    Zeng Z.Zeng Z.
    Cai L.Cai L.
    Xia X.Xia X.
    Fan Q.Fan Q.
    You M.You M.
    Gao Q.Gao Q.
    Yang G.Yang G.
    Lin Y.Lin Y.
    Wang Y.Wang Y.
    Wang J.Wang J.
    Lu Y.Lu Y.
    Zhuang M.Zhuang M.
    Lees D.C.Lees D.C.
    Yuchi Z.Yuchi Z.
    Hugo CerdaHugo Cerda
    Chen W.Chen W.
    Yue Z.Yue Z.
    Vasseur L.Vasseur L.
    Isman M.B.Isman M.B.
    Zheng Y.Zheng Y.
    Liu T.Liu T.
    Liu Q.Liu Q.
    Xie M.Xie M.
    Zou M.Zou M.
    Han L.Han L.
    Chen L.Chen L.
    Douglas C.J.Douglas C.J.
    Song Q.Song Q.
    Wang-Pruski G.Wang-Pruski G.
    Lin S.Lin S.
    Wu Z.Wu Z.
    Yin Y.Yin Y.
    Peng L.Peng L.
    He W.He W.
    Jin Y.Jin Y.
    You S.You S.
    Ward C.M.Ward C.M.
    Gurr G.M.Gurr G.M.
    Ke F.Ke F.
    Fang X.Fang X.