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  Two genomes of highly polyphagous lepidopteran pests (Spodoptera frugiperda, Noctuidae) with different host-plant ranges

Gouin, A., Bretaudeau, A., Nam, K., Gimenez, S., Aury, J.-M., Duvic, B., et al. (2017). Two genomes of highly polyphagous lepidopteran pests (Spodoptera frugiperda, Noctuidae) with different host-plant ranges. Scientific Reports, 7: 11816. doi:10.1038/s41598-017-10461-4.

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http://dx.doi.org/10.1038/s41598-017-10461-4 (Publisher version)
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 Creators:
Gouin, Anaïs, Author
Bretaudeau, Anthony, Author
Nam, Kiwoong, Author
Gimenez, Sylvie, Author
Aury, Jean-Marc, Author
Duvic, Bernard, Author
Hilliou, Frédérique, Author
Durand, Nicolas, Author
Montagné, Nicolas, Author
Darboux, Isabelle, Author
Kuwar, Suyog1, Author              
Chertemps, Thomas, Author
Siaussat, David, Author
Bretschneider, Anne1, 2, Author              
Moné, Yves, Author
Ahn, Seung-Joon1, Author              
Hänniger, Sabine1, Author              
Grenet, Anne-Sophie Gosselin, Author
Neunemann, David, Author
Maumus, Florian, Author
Luyten, Isabelle, AuthorLabadie, Karine, AuthorXu, Wei, AuthorKoutroumpa, Fotini, AuthorEscoubas, Jean- Michel, AuthorLlopis, Angel, AuthorMaïbèche-Coisne, Martine, AuthorSalasc, Fanny, AuthorTomar, Archana, AuthorAnderson, Alisha R., AuthorKhan, Sher Afzal1, 2, Author              Dumas, Pascaline, AuthorOrsucci, Marion, AuthorGuy, Julie, AuthorBelser, Caroline, AuthorAlberti, Adriana, AuthorNoel, Benjamin, AuthorCouloux, Arnaud, AuthorMercier, Jonathan, AuthorNidelet, Sabine, AuthorDubois, Emeric, AuthorLiu, Nai-Yong, AuthorBoulogne, Isabelle, AuthorMirabeau, Olivier, AuthorLe Goff, Gaelle, AuthorGordon, Karl, AuthorOakeshott, John, AuthorConsoli, Fernando L., AuthorVolkoff, Anne- Nathalie, AuthorFescemyer, Howard W., AuthorMarden, James H., AuthorLuthe, Dawn S., AuthorHerrero, Salvador, AuthorHeckel, David G.1, Author              Wincker, Patrick, AuthorKergoat, Gael J., AuthorAmselem, Joelle, AuthorQuesneville, Hadi, AuthorGroot, Astrid T.1, Author              Jacquin-Joly, Emmanuelle, AuthorNègre, Nicolas, AuthorLemaitre, Claire, AuthorLegeai, Fabrice, AuthorFournier, Emmanuelle d’Alençon Philippe, Author more..
Affiliations:
1Department of Entomology, Prof. D. G. Heckel, MPI for Chemical Ecology, Max Planck Society, ou_421895              
2IMPRS International Max Planck Research School for Global Biogeochemical Cycles, Max Planck Institute for Biogeochemistry, Max Planck Society, Hans-Knöll-Str. 10, 07745 Jena, DE, ou_1497757              

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 Abstract: Emergence of polyphagous herbivorous insects entails significant adaptation to recognize, detoxify and digest a variety of host-plants. Despite of its biological and practical importance - since insects eat 20% of crops - no exhaustive analysis of gene repertoires required for adaptations in generalist insect herbivores has previously been performed. The noctuid moth Spodoptera frugiperda ranks as one of the world’s worst agricultural pests. This insect is polyphagous while the majority of other lepidopteran herbivores are specialist. It consists of two morphologically indistinguishable strains (“C” and “R”) that have different host plant ranges. To describe the evolutionary mechanisms that both enable the emergence of polyphagous herbivory and lead to the shift in the host preference, we analyzed whole genome sequences from laboratory and natural populations of both strains. We observed huge expansions of genes associated with chemosensation and detoxification compared with specialist Lepidoptera. These expansions are largely due to tandem duplication, a possible adaptation mechanism enabling polyphagy. Individuals from natural C and R populations show significant genomic differentiation. We found signatures of positive selection in genes involved in chemoreception, detoxification and digestion, and copy number variation in the two latter gene families, suggesting an adaptive role for structural variation.

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 Dates: 2017-04-192017-09-25
 Publication Status: Published online
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 Table of Contents: -
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 Identifiers: Other: HEC381
DOI: 10.1038/s41598-017-10461-4
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Title: Scientific Reports
  Abbreviation : Sci. Rep.
Source Genre: Journal
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Publ. Info: London, UK : Nature Publishing Group
Pages: - Volume / Issue: 7 Sequence Number: 11816 Start / End Page: - Identifier: ISSN: 2045-2322
CoNE: https://pure.mpg.de/cone/journals/resource/2045-2322