The genome of the blind soil-dwelling and ancestrally wingless dipluran Campodea augens, a key reference hexapod for studying the emergence of insect innovations

Détails

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Etat: Public
Version: Final published version
Licence: CC BY 4.0
ID Serval
serval:BIB_A4812FEC4F0C
Type
Article: article d'un périodique ou d'un magazine.
Sous-type
Compte-rendu: analyse d'une oeuvre publiée.
Collection
Publications
Titre
The genome of the blind soil-dwelling and ancestrally wingless dipluran Campodea augens, a key reference hexapod for studying the emergence of insect innovations
Périodique
Genome Biology and Evolution
Auteur(s)
Manni Mosè, Simao Felipe A, Robertson Hugh M, Gabaglio Marco A, Waterhouse Robert M, Misof Bernhard, Niehuis Oliver, Szucsich Nikolaus U, Zdobnov Evgeny M
ISSN
1759-6653
Statut éditorial
Publié
Date de publication
28/11/2019
Peer-reviewed
Oui
Editeur scientifique
Huchon Dorothée
Langue
anglais
Résumé
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.
Mots-clé
Genetics, Ecology, Evolution, Behavior and Systematics
Pubmed
Open Access
Oui
Financement(s)
Fonds national suisse / Carrières / PP00P3_1706642
Création de la notice
30/11/2019 13:52
Dernière modification de la notice
04/01/2020 7:09
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