An Insect Counteradaptation against Host Plant Defenses Evolved through Concerted Neofunctionalization
| Autor: | David G. Heckel, Natalie Wielsch, Hanna M. Heidel-Fischer, Seung-Joon Ahn, Heiko Vogel, Juergen Kroymann, Michael Reichelt, Roy Kirsch, Simon W. Baxter |
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| Přispěvatelé: | Max-Planck-Institut für Chemische Ökologie, Max-Planck-Gesellschaft, Max Planck Institute for Chemical Ecology, Ecologie Systématique et Evolution (ESE), Université Paris-Sud - Paris 11 (UP11)-AgroParisTech-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
[SDV]Life Sciences [q-bio] Genome Insect Glucosinolates Adaptation Biological Context (language use) Biology Moths 010603 evolutionary biology 01 natural sciences coevolutionary arms race Biological Coevolution 03 medical and health sciences Evolutionary arms race Molecular evolution Gene Duplication Genetics Animals Herbivory Plutella xylostella Molecular Biology Gene Ecology Evolution Behavior and Systematics Discoveries ComputingMilieux_MISCELLANEOUS 030304 developmental biology 0303 health sciences Diamondback moth neofunctionalization concerted neofunctionalization Host (biology) molecular evolution chemical ecology plant–insect interactions biology.organism_classification Evolutionary biology insect counteradaptation escape from adaptive conflict Insect Proteins Neofunctionalization Female Adaptation Sulfatases glucosinolate–myrosinase complex glucosinolate sulfatase |
| Zdroj: | Molecular Biology and Evolution Molecular Biology and Evolution, Oxford University Press (OUP), 2019, ⟨10.1093/molbev/msz019⟩ |
| ISSN: | 0737-4038 1537-1719 |
| DOI: | 10.1093/molbev/msz019⟩ |
| Popis: | Antagonistic chemical interactions between herbivorous insects and their host plants are often thought to co-evolve in a stepwise process, with an evolutionary innovation on one side being countered by a corresponding advance on the other. Glucosinolate sulfatase (GSS) enzyme activity is essential for the Diamondback moth (DBM), Plutella xylostella, to overcome a highly diversified secondary metabolite-based host defense system in the Brassicales. GSS genes are located in an ancient cluster of arylsulfatase-like genes, but the exact roles of gene copies and their evolutionary trajectories are unknown. Here, we combine a functional investigation of duplicated insect arylsulfatases with an analysis of associated nucleotide substitution patterns. We show that the DBM genome encodes three glucosinolate sulfatases with distinct substrate spectra and distinct expression patterns in response to glucosinolates. Contrary to our expectations, early functional diversification of gene copies was not indicative of a co-evolutionary arms race between host and herbivore. Instead, both copies of a duplicated arylsulfatase gene evolved concertedly in the context of an insect host shift to acquire novel detoxifying functions under positive selection, a pattern of duplicate gene retention that we call ‘concerted neofunctionalization’. |
| Databáze: | OpenAIRE |
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