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Social evolution. Genomic signatures of evolutionary transitions from solitary to group living.
- Source :
-
Science (New York, N.Y.) [Science] 2015 Jun 05; Vol. 348 (6239), pp. 1139-43. Date of Electronic Publication: 2015 May 14. - Publication Year :
- 2015
-
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.<br /> (Copyright © 2015, American Association for the Advancement of Science.)
- 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
Subjects
Details
- Language :
- English
- ISSN :
- 1095-9203
- Volume :
- 348
- Issue :
- 6239
- Database :
- MEDLINE
- Journal :
- Science (New York, N.Y.)
- Publication Type :
- Academic Journal
- Accession number :
- 25977371
- Full Text :
- https://doi.org/10.1126/science.aaa4788