The Genome of the Blind Soil-Dwelling and Ancestrally Wingless Dipluran Campodea augens: A Key Reference Hexapod for Studying the Emergence of Insect Innovations.

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Version: Final published version
License: CC BY 4.0
Serval ID
serval:BIB_A4812FEC4F0C
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
The Genome of the Blind Soil-Dwelling and Ancestrally Wingless Dipluran Campodea augens: A Key Reference Hexapod for Studying the Emergence of Insect Innovations.
Journal
Genome biology and evolution
Author(s)
Manni M., Simao F.A., Robertson H.M., Gabaglio M.A., Waterhouse R.M., Misof B., Niehuis O., Szucsich N.U., Zdobnov E.M.
ISSN
1759-6653 (Electronic)
ISSN-L
1759-6653
Publication state
Published
Issued date
01/01/2020
Peer-reviewed
Oui
Editor
Huchon Dorothée
Volume
12
Number
1
Pages
3534-3549
Language
english
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Abstract
The dipluran two-pronged bristletail Campodea augens is a blind ancestrally wingless hexapod with the remarkable capacity to regenerate lost body appendages such as its long antennae. As sister group to Insecta (sensu stricto), Diplura are key to understanding the early evolution of hexapods and the origin and evolution of insects. Here we report the 1.2-Gb draft genome of C. augens and results from comparative genomic analyses with other arthropods. In C. augens, we uncovered the largest chemosensory gene repertoire of ionotropic receptors in the animal kingdom, a massive expansion that might compensate for the loss of vision. We found a paucity of photoreceptor genes mirroring at the genomic level the secondary loss of an ancestral external photoreceptor organ. Expansions of detoxification and carbohydrate metabolism gene families might reflect adaptations for foraging behavior, and duplicated apoptotic genes might underlie its high regenerative potential. The C. augens genome represents one of the key references for studying the emergence of genomic innovations in insects, the most diverse animal group, and opens up novel opportunities to study the under-explored biology of diplurans.
Keywords
Animals, Apoptosis/genetics, Arthropods/classification, Arthropods/genetics, Carbohydrate Metabolism/genetics, Evolution, Molecular, Genome, Insecta/genetics, Multigene Family, Phylogeny, Protein Domains, RNA Viruses/genetics, Receptors, Cell Surface/genetics, Vision, Ocular/genetics, Xenobiotics/metabolism, Entognatha, chemosensory genes, gustatory receptors, ionotropic receptors, photoreceptors, two-pronged bristletails
Pubmed
Web of science
Open Access
Yes
Funding(s)
Swiss National Science Foundation / Careers / PP00P3_1706642
Create date
30/11/2019 13:52
Last modification date
08/11/2020 6:24
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