1. Social evolution. Genomic signatures of evolutionary transitions from solitary to group living.
- Author
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Kapheim KM, Pan H, Li C, Salzberg SL, Puiu D, Magoc T, Robertson HM, Hudson ME, Venkat A, Fischman BJ, Hernandez A, Yandell M, Ence D, Holt C, Yocum GD, Kemp WP, Bosch J, Waterhouse RM, Zdobnov EM, Stolle E, Kraus FB, Helbing S, Moritz RF, Glastad KM, Hunt BG, Goodisman MA, Hauser F, Grimmelikhuijzen CJ, Pinheiro DG, Nunes FM, Soares MP, Tanaka ÉD, Simões ZL, Hartfelder K, Evans JD, Barribeau SM, Johnson RM, Massey JH, Southey BR, Hasselmann M, Hamacher D, Biewer M, Kent CF, Zayed A, Blatti C 3rd, Sinha S, Johnston JS, Hanrahan SJ, Kocher SD, Wang J, Robinson GE, and Zhang G
- Subjects
- Amino-Acid N-Acetyltransferase, Animals, Bees classification, DNA Transposable Elements, Gene Expression Regulation, Gene Regulatory Networks, Genome, Insect genetics, Phylogeny, Selection, Genetic, Transcription Factors chemistry, Transcription Factors genetics, Bees genetics, Evolution, Molecular, Genetic Drift, Social Behavior, Transcriptome
- Abstract
The evolution of eusociality is one of the major transitions in evolution, but the underlying genomic changes are unknown. We compared the genomes of 10 bee species that vary in social complexity, representing multiple independent transitions in social evolution, and report three major findings. First, many important genes show evidence of neutral evolution as a consequence of relaxed selection with increasing social complexity. Second, there is no single road map to eusociality; independent evolutionary transitions in sociality have independent genetic underpinnings. Third, though clearly independent in detail, these transitions do have similar general features, including an increase in constrained protein evolution accompanied by increases in the potential for gene regulation and decreases in diversity and abundance of transposable elements. Eusociality may arise through different mechanisms each time, but would likely always involve an increase in the complexity of gene networks., (Copyright © 2015, American Association for the Advancement of Science.)
- Published
- 2015
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