Sawfly Genomes Reveal Evolutionary Acquisitions That Fostered the Mega-Radiation of Parasitoid and Eusocial Hymenoptera.

TitleSawfly Genomes Reveal Evolutionary Acquisitions That Fostered the Mega-Radiation of Parasitoid and Eusocial Hymenoptera.
Publication TypeJournal Article
Year of Publication2020
AuthorsOeyen, JPhilip, Baa-Puyoulet, P, Benoit, JB, Beukeboom, LW, Bornberg-Bauer, E, Buttstedt, A, Calevro, F, Cash, EI, Chao, H, Charles, H, Chen, M-JMay, Childers, C, Cridge, AG, Dearden, P, Dinh, H, Doddapaneni, H, Dolan, A, Donath, A, Dowling, D, Dugan, S, Duncan, E, Elpidina, EN, Friedrich, M, Geuverink, E, Gibson, JD, Grath, S, Grimmelikhuijzen, CJP, Große-Wilde, E, Gudobba, C, Han, Y, Hansson, BS, Hauser, F, Hughes, DST, Ioannidis, P, Jacquin-Joly, E, Jennings, EC, Jones, JW, Klasberg, S, Lee, SL, Lesný, P, Lovegrove, M, Martin, S, Martynov, AG, Mayer, C, Montagné, N, Moris, VC, Munoz-Torres, M, Murali, SCanchi, Muzny, DM, Oppert, B, Parisot, N, Pauli, T, Peters, RS, Petersen, M, Pick, C, Persyn, E, Podsiadlowski, L, Poelchau, MF, Provataris, P, Qu, J, Reijnders, MJMF, von Reumont, BMarcus, Rosendale, AJ, Simão, FA, Skelly, J, Sotiropoulos, AG, Stahl, AL, Sumitani, M, Szuter, EM, Tidswell, O, Tsitlakidis, E, Vedder, L, Waterhouse, RM, Werren, JH, Wilbrandt, J, Worley, KC, Yamamoto, DS, van de Zande, L, Zdobnov, EM, Ziesmann, T, Gibbs, RA, Richards, S, Hatakeyama, M, Misof, B, Niehuis, O
JournalGenome Biol Evol
Date Published2020 Jul 01
KeywordsAmino Acid Sequence, Animals, Conserved Sequence, DNA Transposable Elements, Female, Gene Dosage, Genetic Speciation, Genome, Insect, Glycoproteins, Herbivory, Host-Parasite Interactions, Hymenoptera, Immunity, Insect Proteins, Male, Multigene Family, Receptors, Odorant, Social Behavior, Vision, Ocular

The tremendous diversity of Hymenoptera is commonly attributed to the evolution of parasitoidism in the last common ancestor of parasitoid sawflies (Orussidae) and wasp-waisted Hymenoptera (Apocrita). However, Apocrita and Orussidae differ dramatically in their species richness, indicating that the diversification of Apocrita was promoted by additional traits. These traits have remained elusive due to a paucity of sawfly genome sequences, in particular those of parasitoid sawflies. Here, we present comparative analyses of draft genomes of the primarily phytophagous sawfly Athalia rosae and the parasitoid sawfly Orussus abietinus. Our analyses revealed that the ancestral hymenopteran genome exhibited traits that were previously considered unique to eusocial Apocrita (e.g., low transposable element content and activity) and a wider gene repertoire than previously thought (e.g., genes for CO2 detection). Moreover, we discovered that Apocrita evolved a significantly larger array of odorant receptors than sawflies, which could be relevant to the remarkable diversification of Apocrita by enabling efficient detection and reliable identification of hosts.

Alternate JournalGenome Biol Evol
PubMed ID32442304
PubMed Central IDPMC7455281
Grant ListU54 HG003273 / HG / NHGRI NIH HHS / United States

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