%0 Journal Article %J Genome Biol Evol %D 2020 %T Sawfly Genomes Reveal Evolutionary Acquisitions That Fostered the Mega-Radiation of Parasitoid and Eusocial Hymenoptera. %A Oeyen, Jan Philip %A Baa-Puyoulet, Patrice %A Benoit, Joshua B %A Beukeboom, Leo W %A Bornberg-Bauer, Erich %A Buttstedt, Anja %A Calevro, Federica %A Cash, Elizabeth I %A Chao, Hsu %A Charles, Hubert %A Chen, Mei-Ju May %A Childers, Christopher %A Cridge, Andrew G %A Dearden, Peter %A Dinh, Huyen %A Harshavardhan Doddapaneni %A Dolan, Amanda %A Donath, Alexander %A Dowling, Daniel %A Dugan, Shannon %A Duncan, Elizabeth %A Elpidina, Elena N %A Friedrich, Markus %A Geuverink, Elzemiek %A Gibson, Joshua D %A Grath, Sonja %A Grimmelikhuijzen, Cornelis J P %A Große-Wilde, Ewald %A Gudobba, Cameron %A Yi Han %A Hansson, Bill S %A Hauser, Frank %A Hughes, Daniel S T %A Ioannidis, Panagiotis %A Jacquin-Joly, Emmanuelle %A Jennings, Emily C %A Jones, Jeffery W %A Klasberg, Steffen %A Lee, Sandra L %A Lesný, Peter %A Lovegrove, Mackenzie %A Martin, Sebastian %A Martynov, Alexander G %A Mayer, Christoph %A Montagné, Nicolas %A Moris, Victoria C %A Munoz-Torres, Monica %A Murali, Shwetha Canchi %A Donna M Muzny %A Oppert, Brenda %A Parisot, Nicolas %A Pauli, Thomas %A Peters, Ralph S %A Petersen, Malte %A Pick, Christian %A Persyn, Emma %A Podsiadlowski, Lars %A Poelchau, Monica F %A Provataris, Panagiotis %A Qu, Jiaxin %A Reijnders, Maarten J M F %A von Reumont, Björn Marcus %A Rosendale, Andrew J %A Simão, Felipe A %A Skelly, John %A Sotiropoulos, Alexandros G %A Stahl, Aaron L %A Sumitani, Megumi %A Szuter, Elise M %A Tidswell, Olivia %A Tsitlakidis, Evangelos %A Vedder, Lucia %A Waterhouse, Robert M %A Werren, John H %A Wilbrandt, Jeanne %A Kim C Worley %A Yamamoto, Daisuke S %A van de Zande, Louis %A Zdobnov, Evgeny M %A Ziesmann, Tanja %A Richard A Gibbs %A Stephen Richards %A Hatakeyama, Masatsugu %A Misof, Bernhard %A Niehuis, Oliver %K Amino Acid Sequence %K Animals %K Conserved Sequence %K DNA Transposable Elements %K Female %K Gene Dosage %K Genetic Speciation %K Genome, Insect %K Glycoproteins %K Herbivory %K Host-Parasite Interactions %K Hymenoptera %K Immunity %K Insect Proteins %K Male %K Multigene Family %K Receptors, Odorant %K Social Behavior %K Vision, Ocular %X

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.

%B Genome Biol Evol %V 12 %P 1099-1188 %8 2020 Jul 01 %G eng %N 7 %1 https://www.ncbi.nlm.nih.gov/pubmed/32442304?dopt=Abstract %R 10.1093/gbe/evaa106 %0 Journal Article %J Genome Biol %D 2015 %T The genomes of two key bumblebee species with primitive eusocial organization. %A Sadd, Ben M %A Barribeau, Seth M %A Bloch, Guy %A de Graaf, Dirk C %A Dearden, Peter %A Elsik, Christine G %A Gadau, Jürgen %A Grimmelikhuijzen, Cornelis J P %A Hasselmann, Martin %A Lozier, Jeffrey D %A Robertson, Hugh M %A Smagghe, Guy %A Stolle, Eckart %A Van Vaerenbergh, Matthias %A Waterhouse, Robert M %A Bornberg-Bauer, Erich %A Klasberg, Steffen %A Bennett, Anna K %A Camara, Francisco %A Guigó, Roderic %A Hoff, Katharina %A Mariotti, Marco %A Munoz-Torres, Monica %A Murphy, Terence %A Santesmasses, Didac %A Amdam, Gro V %A Beckers, Matthew %A Beye, Martin %A Biewer, Matthias %A Bitondi, Márcia M G %A Blaxter, Mark L %A Bourke, Andrew F G %A Brown, Mark J F %A Buechel, Severine D %A Cameron, Rossanah %A Cappelle, Kaat %A Carolan, James C %A Christiaens, Olivier %A Ciborowski, Kate L %A Clarke, David F %A Colgan, Thomas J %A Collins, David H %A Cridge, Andrew G %A Dalmay, Tamas %A Dreier, Stephanie %A du Plessis, Louis %A Duncan, Elizabeth %A Erler, Silvio %A Evans, Jay %A Falcon, Tiago %A Flores, Kevin %A Freitas, Flávia C P %A Fuchikawa, Taro %A Gempe, Tanja %A Hartfelder, Klaus %A Hauser, Frank %A Helbing, Sophie %A Humann, Fernanda C %A Irvine, Frano %A Jermiin, Lars S %A Johnson, Claire E %A Johnson, Reed M %A Jones, Andrew K %A Kadowaki, Tatsuhiko %A Kidner, Jonathan H %A Koch, Vasco %A Köhler, Arian %A Kraus, F Bernhard %A Lattorff, H Michael G %A Leask, Megan %A Lockett, Gabrielle A %A Mallon, Eamonn B %A Antonio, David S Marco %A Marxer, Monika %A Meeus, Ivan %A Moritz, Robin F A %A Nair, Ajay %A Näpflin, Kathrin %A Nissen, Inga %A Niu, Jinzhi %A Nunes, Francis M F %A Oakeshott, John G %A Osborne, Amy %A Otte, Marianne %A Pinheiro, Daniel G %A Rossié, Nina %A Rueppell, Olav %A Santos, Carolina G %A Schmid-Hempel, Regula %A Schmitt, Björn D %A Schulte, Christina %A Simões, Zilá L P %A Soares, Michelle P M %A Swevers, Luc %A Winnebeck, Eva C %A Wolschin, Florian %A Yu, Na %A Zdobnov, Evgeny M %A Aqrawi, Peshtewani K %A Blankenburg, Kerstin P %A Coyle, Marcus %A Francisco, Liezl %A Hernandez, Alvaro G %A Holder, Michael %A Hudson, Matthew E %A Jackson, Laronda %A Jayaseelan, Joy %A Joshi, Vandita %A Kovar, Christie %A Lee, Sandra L %A Mata, Robert %A Mathew, Tittu %A Newsham, Irene F %A Ngo, Robin %A Okwuonu, Geoffrey %A Pham, Christopher %A Pu, Ling-Ling %A Saada, Nehad %A Santibanez, Jireh %A Simmons, DeNard %A Thornton, Rebecca %A Venkat, Aarti %A Walden, Kimberly K O %A Wu, Yuan-Qing %A Debyser, Griet %A Devreese, Bart %A Asher, Claire %A Blommaert, Julie %A Chipman, Ariel D %A Chittka, Lars %A Fouks, Bertrand %A Liu, Jisheng %A O'Neill, Meaghan P %A Sumner, Seirian %A Puiu, Daniela %A Qu, Jiaxin %A Salzberg, Steven L %A Scherer, Steven E %A Muzny, Donna M %A Richards, Stephen %A Robinson, Gene E %A Gibbs, Richard A %A Schmid-Hempel, Paul %A Worley, Kim C %K Animals %K Bee Venoms %K Bees %K Behavior, Animal %K Chemoreceptor Cells %K Chromosome Mapping %K Databases, Genetic %K Evolution, Molecular %K Female %K Gene Expression Regulation %K Gene Rearrangement %K Genes, Insect %K Genomics %K Interspersed Repetitive Sequences %K Male %K Open Reading Frames %K Polymorphism, Single Nucleotide %K Selenoproteins %K Sequence Analysis, DNA %K Social Behavior %K Species Specificity %K Synteny %X

BACKGROUND: The shift from solitary to social behavior is one of the major evolutionary transitions. Primitively eusocial bumblebees are uniquely placed to illuminate the evolution of highly eusocial insect societies. Bumblebees are also invaluable natural and agricultural pollinators, and there is widespread concern over recent population declines in some species. High-quality genomic data will inform key aspects of bumblebee biology, including susceptibility to implicated population viability threats.

RESULTS: We report the high quality draft genome sequences of Bombus terrestris and Bombus impatiens, two ecologically dominant bumblebees and widely utilized study species. Comparing these new genomes to those of the highly eusocial honeybee Apis mellifera and other Hymenoptera, we identify deeply conserved similarities, as well as novelties key to the biology of these organisms. Some honeybee genome features thought to underpin advanced eusociality are also present in bumblebees, indicating an earlier evolution in the bee lineage. Xenobiotic detoxification and immune genes are similarly depauperate in bumblebees and honeybees, and multiple categories of genes linked to social organization, including development and behavior, show high conservation. Key differences identified include a bias in bumblebee chemoreception towards gustation from olfaction, and striking differences in microRNAs, potentially responsible for gene regulation underlying social and other traits.

CONCLUSIONS: These two bumblebee genomes provide a foundation for post-genomic research on these key pollinators and insect societies. Overall, gene repertoires suggest that the route to advanced eusociality in bees was mediated by many small changes in many genes and processes, and not by notable expansion or depauperation.

%B Genome Biol %V 16 %P 76 %8 2015 Apr 24 %G eng %N 1 %1 https://www.ncbi.nlm.nih.gov/pubmed/25908251?dopt=Abstract %R 10.1186/s13059-015-0623-3