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Rapid hybrid speciation in Darwin's finches.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology. Uppsala University, Science for Life Laboratory, SciLifeLab.ORCID iD: 0000-0003-4826-0349
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology. Uppsala University, Science for Life Laboratory, SciLifeLab.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology. Uppsala University, Science for Life Laboratory, SciLifeLab.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology. Uppsala University, Science for Life Laboratory, SciLifeLab. Swedish Univ Agr Sci, Dept Anim Breeding & Genet, Uppsala, Sweden.; Texas A&M Univ, Dept Vet Integrat Biosci, College Stn, TX USA.; Harvard Univ, Dept Organism & Evolutionary Biol, Cambridge, MA 02138 USA.; Harvard Univ, Museum Comparat Zool, Cambridge, MA 02138 USA..
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2018 (English)In: Science, ISSN 0036-8075, E-ISSN 1095-9203, Vol. 359, no 6372, p. 224-228Article in journal (Refereed) Published
Abstract [en]

Homoploid hybrid speciation in animals has been inferred frequently from patterns of variation, but few examples have withstood critical scrutiny. Here we report a directly documented example, from its origin to reproductive isolation. An immigrant Darwin's finch to Daphne Major in the Galápagos archipelago initiated a new genetic lineage by breeding with a resident finch (Geospiza fortis). Genome sequencing of the immigrant identified it as a G. conirostris male that originated on Española >100 kilometers from Daphne Major. From the second generation onward, the lineage bred endogamously and, despite intense inbreeding, was ecologically successful and showed transgressive segregation of bill morphology. This example shows that reproductive isolation, which typically develops over hundreds of generations, can be established in only three.

Place, publisher, year, edition, pages
2018. Vol. 359, no 6372, p. 224-228
National Category
Evolutionary Biology
Identifiers
URN: urn:nbn:se:uu:diva-340986DOI: 10.1126/science.aao4593ISI: 000419816600048PubMedID: 29170277OAI: oai:DiVA.org:uu-340986DiVA, id: diva2:1180433
Funder
Knut and Alice Wallenberg FoundationSwedish Research CouncilScience for Life Laboratory - a national resource center for high-throughput molecular bioscienceAvailable from: 2018-02-05 Created: 2018-02-05 Last updated: 2018-02-14Bibliographically approved

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Lamichhaney, SangeetHan, FanWebster, Matthew ThomasAndersson, Leif

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