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The genomes of two key bumblebee species with primitive eusocial organization
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  • National Institutes of Health (NIH)
  • Agriculture and Food Research Initiative Competitive grant from the USDA National Institute of Food and Agriculture
  • Research Council of Norway (NFR)
  • PEW Charitable Trust
  • University of East Anglia, UK
  • Israel Science Foundation (ISF)
  • Biotechnology and Biological Sciences Research Council, UK
  • University of East Anglia
  • University of Alabama College of Arts and Sciences
  • Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
  • Marie Curie International Outgoing Fellowship
  • Swiss National Science Foundation
  • New Faculty Initiative Grant (NFIG) from Illinois State University College of Arts and Sciences
  • DFG
  • Instituto Nacional de Bioinformatica (INB) from ISCIII in Spain
Sponsorship Process Number: 
  • National Institutes of Health (NIH): DP1 OD006416
  • National Institutes of Health (NIH): U54 HG003273
  • Agriculture and Food Research Initiative Competitive grant from the USDA National Institute of Food and Agriculture: 2010-65106-21301
  • FAPESP: 11/03171-5
  • Marie Curie International Outgoing Fellowship: PIOF-GA-2011-303312
  • Swiss National Science Foundation: 31003A-125350
  • Swiss National Science Foundation: 31003A-143936
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.
Issue Date: 
Genome Biology. London: Biomed Central Ltd, v. 16, n. 76, 1-31, 2015.
Time Duration: 
Biomed Central Ltd
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Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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