Genomic signatures accompanying the dietary shift to phytophagy in polyphagan beetles

Autor: Seunggwan Shin, Julien Roux, Robert M. Waterhouse, Mathieu Seppey, Bernhard Misof, Xin Zhou, Duane D. McKenna, Brent C. Emerson, Camille Pitteloud, Hermes E. Escalona, Nadir Alvarez, Panagiotis Ioannidis, Marc Robinson-Rechavi
Přispěvatelé: National Science Foundation (US), Department of Agriculture (US), European Commission, German Research Foundation, BGI Group, China National GeneBank, Swiss National Science Foundation, Ministerio de Economía y Competitividad (España), Muséum national d'Histoire naturelle (France)
Jazyk: angličtina
Rok vydání: 2019
Předmět:
0106 biological sciences
lcsh:QH426-470
Gene family evolution
media_common.quotation_subject
Adaptation
Biological
Beetle-plant trophic interactions
Genomics
Beetle diversification
Detoxification enzymes
010603 evolutionary biology
01 natural sciences
Adephaga
03 medical and health sciences
Animals
Biological Evolution
Coleoptera/enzymology
Coleoptera/genetics
Herbivory
Models
Genetic
Multigene Family
0302 clinical medicine
Genetic
Models
Gene family
ddc:576.5
Adaptation
lcsh:QH301-705.5
Gene
Polyphaga
media_common
030304 developmental biology
Trophic level
2. Zero hunger
0303 health sciences
Herbivore
biology
Research
Coleoptera/enzymology/genetics
biology.organism_classification
Biological
Coleoptera
lcsh:Genetics
Speciation
lcsh:Biology (General)
Evolutionary biology
030217 neurology & neurosurgery
Zdroj: Genome biology, vol. 20, no. 1, pp. 98
Genome Biology, 20
Genome Biology, Vol. 20, No 1 (2019) P. 98
Digital.CSIC. Repositorio Institucional del CSIC
instname
Genome Biology
Genome Biology, Vol 20, Iss 1, Pp 1-14 (2019)
ISSN: 1465-6906
Popis: © The Author(s). 2019
[Background] The diversity and evolutionary success of beetles (Coleoptera) are proposed to be related to the diversity of plants on which they feed. Indeed, the largest beetle suborder, Polyphaga, mostly includes plant eaters among its approximately 315,000 species. In particular, plants defend themselves with a diversity of specialized toxic chemicals. These may impose selective pressures that drive genomic diversification and speciation in phytophagous beetles. However, evidence of changes in beetle gene repertoires driven by such interactions remains largely anecdotal and without explicit hypothesis testing.
[Results] We explore the genomic consequences of beetle-plant trophic interactions by performing comparative gene family analyses across 18 species representative of the two most species-rich beetle suborders. We contrast the gene contents of species from the mostly plant-eating suborder Polyphaga with those of the mainly predatory Adephaga. We find gene repertoire evolution to be more dynamic, with significantly more adaptive lineage-specific expansions, in the more speciose Polyphaga. Testing the specific hypothesis of adaptation to plant feeding, we identify families of enzymes putatively involved in beetle-plant interactions that underwent adaptive expansions in Polyphaga. There is notable support for the selection hypothesis on large gene families for glutathione S-transferase and carboxylesterase detoxification enzymes.
[Conclusions] Our explicit modeling of the evolution of gene repertoires across 18 species identifies putative adaptive lineage-specific gene family expansions that accompany the dietary shift towards plants in beetles. These genomic signatures support the popular hypothesis of a key role for interactions with plant chemical defenses, and for plant feeding in general, in driving beetle diversification.
This work was supported by the United States National Science Foundation (DEB 1355169) and the United States Department of Agriculture (cooperative agreement 8130-0547-CA) to DDM, the Spanish grant CGL2013-42589-P awarded by the MINECO and co-financed by FEDER to BCE, the Science Foundation DFG grant BA2152/11-1, 2, the BGI-Shenzhen, the China National Genebank, and the following Swiss National Science Foundation grants: 31003A_143936 (PI), 31003A_173048 (MRR), PP00P3_170664 (RMW), and PP00P3_172899 (NA). Funding for open access charge: Geneva Natural History Museum.
Databáze: OpenAIRE
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