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The genomics of organismal diversification illuminated by adaptive radiations.
Journal article

The genomics of organismal diversification illuminated by adaptive radiations.

  • Berner D Zoological Institute, University of Basel, Vesalgasse 1, 4051 Basel, Switzerland. Electronic address: daniel.berner@unibas.ch.
  • Salzburger W Zoological Institute, University of Basel, Vesalgasse 1, 4051 Basel, Switzerland. Electronic address: walter.salzburger@unibas.ch.
  • 2015-08-12
Published in:
  • Trends in genetics : TIG. - 2015
adaptation locus
convergence
divergence
gene flow
genome sequencing
Adaptation, Biological
Animals
Environment
Evolution, Molecular
Genetic Speciation
Genome
Genomics
Phylogeny
English Adaptive radiation is the rapid and extensive ecological diversification of an organismal lineage to generate both phenotypic disparity (divergence) and similarity (convergence). Demonstrating particularly clear evidence of the power of natural selection, adaptive radiations serve as outstanding systems for studying the mechanisms of evolution. We review how the first wave of genomic investigation across major archetypal adaptive radiations has started to shed light on the molecular basis of adaptive diversification. Notably, these efforts have not yet identified consistent features of genomic architecture that promote diversification. However, access to a pool of ancient adaptive variation via genetic exchange emerges as an important driver of adaptive radiation. We conclude by highlighting avenues for future research on adaptive radiations, including the discovery of 'adaptation genes' based on genome scans using replicate convergent populations.
Language
  • English
Open access status
closed
Identifiers
Persistent URL
https://folia.unifr.ch/global/documents/159982
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