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Documenting homoploid hybrid speciation
  • Zhiqin Long,
  • Loren Rieseberg
Zhiqin Long
The University of British Columbia
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Loren Rieseberg
The University of British Columbia

Corresponding Author:[email protected]

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Homoploid hybrid speciation is challenging to document because hybridization can lead to outcomes other than speciation. Thus, some authors have argued that establishment of homoploid hybrid speciation should include evidence that reproductive barriers isolating the hybrid neo-species from its parental species were derived from hybridization. While this criterion is difficult to satisfy, several recent papers have successfully employed a common pipeline to identify candidate genes underlying such barriers and (in one case) to validate their function. We describe this pipeline, its application to several plant and animal species, and what we have learned about homoploid hybrid speciation as a consequence. We argue that—-given the ubiquity of admixture and the polygenic basis of reproductive isolation—-homoploid hybrid speciation could be much more common and more protracted than suggested by earlier conceptual arguments and theoretical studies.
30 Jan 2024Submitted to Molecular Ecology
30 Jan 2024Review(s) Completed, Editorial Evaluation Pending
01 Feb 2024Reviewer(s) Assigned
18 Mar 2024Editorial Decision: Revise Minor
16 Apr 2024Review(s) Completed, Editorial Evaluation Pending