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The Role of Hybridization in Species Formation and Persistence.

Joshua V PeñalbaAnna RunemarkJoana I MeierPooja SinghGuinevere O U WoganRosa Ana Sánchez-GuillénJames MalletSina J RometschMitra MenonOle SeehausenJonna KulmuniRicardo J Pereira
Published in: Cold Spring Harbor perspectives in biology (2024)
Hybridization, or interbreeding between different taxa, was traditionally considered to be rare and to have a largely detrimental impact on biodiversity, sometimes leading to the breakdown of reproductive isolation and even to the reversal of speciation. However, modern genomic and analytical methods have shown that hybridization is common in some of the most diverse clades across the tree of life, sometimes leading to rapid increase of phenotypic variability, to introgression of adaptive alleles, to the formation of hybrid species, and even to entire species radiations. In this review, we identify consensus among diverse research programs to show how the field has progressed. Hybridization is a multifaceted evolutionary process that can strongly influence species formation and facilitate adaptation and persistence of species in a rapidly changing world. Progress on testing this hypothesis will require cooperation among different subdisciplines.
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