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Population Genomics of Adaptive Radiation
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  • Lucia Combrink,
  • Jimena Golcher Benavides,
  • Alexander Lewanski,
  • Jessica Rick,
  • William Rosenthal,
  • Catherine Wagner
Lucia Combrink
University of Wyoming
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Jimena Golcher Benavides
University of Wyoming
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Alexander Lewanski
University of Wyoming
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Jessica Rick
The University of Arizona School of Natural Resources and the Environment
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William Rosenthal
University of Wyoming
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Catherine Wagner
University of Wyoming

Corresponding Author:catherine.wagner@uwyo.edu

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Abstract

Adaptive radiations are rich laboratories for exploring, testing, and understanding key theories in evolution and ecology because they offer spectacular displays of speciation and ecological adaptation. Particular challenges to the study of adaptive radiation include high levels of species richness, rapid speciation, and gene flow between species. Over the last decade, high-throughput sequencing technologies and access to population genomic data have lessened these challenges by enabling the analysis of samples from many individual organisms at whole-genome scales. Here we review how population genomic data have facilitated our knowledge of adaptive radiation in five key areas: 1) phylogenetics, 2) hybridization, 3) timing and rates of diversification, 4) genomic basis of trait evolution, and 5) the role of genome structure in divergence. We review current knowledge in each area, highlight outstanding questions, and focus on methods that facilitate detection of complex patterns in population evolutionary demography. Among patterns that emerge, we particularly note that hybridization—and the hypothesized processes by which it shapes diversification—and questions seeking to bridge the divide between microevolutionary and macroevolutionary processes as rich areas for future study. Overall, access to population genomic data have facilitated an exciting era in adaptive radiation research, with implications for deeper understanding of fundamental evolutionary processes across the tree of life.
01 Apr 2024Submitted to Molecular Ecology
02 Apr 2024Review(s) Completed, Editorial Evaluation Pending
03 Apr 2024Reviewer(s) Assigned
06 Jul 20241st Revision Received
10 Jul 2024Assigned to Editor
10 Jul 2024Submission Checks Completed
10 Jul 2024Review(s) Completed, Editorial Evaluation Pending
19 Jul 2024Editorial Decision: Revise Minor
26 Aug 20242nd Revision Received
27 Aug 2024Assigned to Editor
27 Aug 2024Submission Checks Completed
27 Aug 2024Review(s) Completed, Editorial Evaluation Pending
12 Sep 2024Editorial Decision: Accept