Sawfly genomes reveal evolutionary acquisitions that fostered the mega-radiation of parasitoid and eusocial Hymenoptera

Jan Philip Oeyen*, Patrice Baa-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 Dearden, Huyen Dinh, Harsha Vardhan Doddapaneni, Amanda Dolan, Alexander Donath, Daniel Dowling, Shannon DuganElizabeth 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 S. T. Hughes, Panagiotis Ioannidis, Emmanuelle Jacquin-Joly, Emily C. Jennings, Jeffery W. Jones, Steffen Klasberg, Sandra L. Lee, Peter Lesny, Mackenzie Lovegrove, Sebastian Martin, Alexander G. Martynov, Christoph Mayer, Nicolas Montagne, Victoria C. Moris, Monica Munoz-Torres, Shwetha Canchi Murali, Donna M. Muzny, Brenda Oppert, Nicolas Parisot, Thomas Pauli, Ralph S. Peters, Malte Petersen, Christian Pick, Emma Persyn, Lars Podsiadlowski, Monica F. Poelchau, Panagiotis Provataris, Jiaxin Qu, Maarten J. M. F. Reijnders, Bjoern Marcus von Reumont, Andrew J. Rosendale, Felipe A. Simao, John Skelly, Alexandros G. Sotiropoulos, Aaron L. 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

*Corresponding author for this work

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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.

Original languageEnglish
Pages (from-to)1099-1118
Number of pages20
JournalGenome Biology and Evolution
Volume12
Issue number7
DOIs
Publication statusPublished - Jul-2020

Keywords

  • hexamerin
  • major royal jelly protein
  • microsynteny
  • odorant receptor
  • opsin
  • phytophagy
  • ROYAL JELLY PROTEIN
  • MULTIPLE SEQUENCE ALIGNMENT
  • JEWEL WASP NASONIA
  • DRAFT GENOME
  • CHEMORECEPTOR SUPERFAMILY
  • MOLECULAR EVOLUTION
  • MODEL SELECTION
  • APIS-MELLIFERA
  • ATHALIA-ROSAE
  • HOST LOCATION

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