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

2020; Oxford University Press; Volume: 12; Issue: 7 Linguagem: Inglês

10.1093/gbe/evaa106

1759-6653

Jan Philip Oeyen, Patrice Bâa-Puyoulet, Joshua B. Benoit, Leo W. Beukeboom, Erich Bornberg‐Bauer, Anja Buttstedt, Federica Calevro, Elizabeth Cash, Hsu Chao, Hubert Charles, Mei-Ju May Chen, Christopher Childers, Andrew G. Cridge, Peter K. Dearden, Huyen Dinh, HarshaVardhan Doddapaneni, Amanda Dolan, Alexander Donath, Daniel Dowling, Shannon Dugan, Elizabeth J. Duncan, Elena N. Elpidina, Markus Friedrich, Elzemiek Geuverink, Joshua D. Gibson, Sonja Grath, Cornelis J.P. Grimmelikhuijzen, Ewald Große‐Wilde, Cameron Gudobba, Yi Han, Bill S. Hansson, Frank Hauser, Daniel Hughes, Panagiotis Ioannidis, Emmanuelle Jacquin‐Joly, Emily C. Jennings, Jeffery W. Jones, Steffen Klasberg, Sandra L. Lee, Peter Lesný, Mackenzie Lovegrove, Sebastian Martin, Alexander G. Martynov, Christoph Mayer, Nicolas Montagné, Victoria C. Moris, Monica Muñoz‐Torres, Shwetha C. Murali, Donna M. Muzny, Brenda Oppert, Nicolas Parisot, Thomas Pauli, Ralph S. Peters, Malte Petersen, Christian Pick, Emma Persyn, Lars Podsiadłowski, Monica F. Poelchau, Panagiotis Provataris, Jiaxin Qu, Maarten Reijnders, Björn M. von Reumont, Andrew J. Rosendale, Felipe A. Simão, John Skelly, Alexandros G. Sotiropoulos, Aaron Stahl, Megumi Sumitani, Elise M. Szuter, Olivia Tidswell, Evangelos Tsitlakidis, Lucia Vedder, Robert M. Waterhouse, John H. Werren, Jeanne Wilbrandt, Kim C. Worley, Daisuke S. Yamamoto, Louis van de Zande, Evgeny M. Zdobnov, Tanja Ziesmann, Richard A. Gibbs, Stephen Richards, Masatsugu Hatakeyama, Bernhard Misof, Oliver Niehuis,

Insect behavior and control techniques

Abstract 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.