Cycles of fusion and fission enabled rapid parallel adaptive radiations in African cichlids.

Autor: Meier JI; Institute of Ecology and Evolution, University of Bern, Bern, Switzerland.; Department of Fish Ecology and Evolution, Centre for Ecology, Evolution, and Biogeochemistry, Swiss Federal Institute of Aquatic Science and Technology (EAWAG), Kastanienbaum, Switzerland.; Department of Zoology, University of Cambridge, Cambridge, UK.; Tree of Life Programme, Wellcome Sanger Institute, Hinxton, UK., McGee MD; Institute of Ecology and Evolution, University of Bern, Bern, Switzerland.; Department of Fish Ecology and Evolution, Centre for Ecology, Evolution, and Biogeochemistry, Swiss Federal Institute of Aquatic Science and Technology (EAWAG), Kastanienbaum, Switzerland.; School of Biological Sciences, Monash University, Melbourne, Victoria, Australia., Marques DA; Institute of Ecology and Evolution, University of Bern, Bern, Switzerland.; Department of Fish Ecology and Evolution, Centre for Ecology, Evolution, and Biogeochemistry, Swiss Federal Institute of Aquatic Science and Technology (EAWAG), Kastanienbaum, Switzerland.; Natural History Museum Basel, Basel, Switzerland., Mwaiko S; Institute of Ecology and Evolution, University of Bern, Bern, Switzerland.; Department of Fish Ecology and Evolution, Centre for Ecology, Evolution, and Biogeochemistry, Swiss Federal Institute of Aquatic Science and Technology (EAWAG), Kastanienbaum, Switzerland., Kishe M; Tanzania Fisheries Research Institute (TAFIRI), Dar es Salaam, Tanzania., Wandera S; National Fisheries Resources Research Institute (NAFIRRI), Jinja, Uganda., Neumann D; Leipniz Institute for Biodiversity Change, Hamburg, Germany., Mrosso H; Tanzania Fisheries Research Institute (TAFIRI), Dar es Salaam, Tanzania., Chapman LJ; Department of Biology, McGill University, Montreal, Quebec, Canada., Chapman CA; Wilson Center, Washington, DC, USA.; Biology Department, Vancouver Island University, Nanaimo, British Columbia, Canada.; School of Life Sciences, University of KwaZulu-Natal, Scottsville, Pietermaritzburg, South Africa.; Shaanxi Key Laboratory for Animal Conservation, Northwest University, Xi'an, China.; Biology Department, Vancouver Island University, Nanaimo, British Columbia, Canada., Kaufman L; Boston University Marine Program, Department of Biology, Boston University, Boston, MA, USA., Taabu-Munyaho A; National Fisheries Resources Research Institute (NAFIRRI), Jinja, Uganda., Wagner CE; Department of Botany, University of Wyoming, Laramie, WY, USA., Bruggmann R; Interfaculty Bioinformatics Unit and Institute of Bioinformatics, University of Bern, Bern, Switzerland., Excoffier L; Institute of Ecology and Evolution, University of Bern, Bern, Switzerland.; Swiss Institute of Bioinformatics, Lausanne, Switzerland., Seehausen O; Institute of Ecology and Evolution, University of Bern, Bern, Switzerland.; Department of Fish Ecology and Evolution, Centre for Ecology, Evolution, and Biogeochemistry, Swiss Federal Institute of Aquatic Science and Technology (EAWAG), Kastanienbaum, Switzerland.
Jazyk: angličtina
Zdroj: Science (New York, N.Y.) [Science] 2023 Sep 29; Vol. 381 (6665), pp. eade2833. Date of Electronic Publication: 2023 Sep 29.
DOI: 10.1126/science.ade2833
Abstrakt: Although some lineages of animals and plants have made impressive adaptive radiations when provided with ecological opportunity, the propensities to radiate vary profoundly among lineages for unknown reasons. In Africa's Lake Victoria region, one cichlid lineage radiated in every lake, with the largest radiation taking place in a lake less than 16,000 years old. We show that all of its ecological guilds evolved in situ. Cycles of lineage fusion through admixture and lineage fission through speciation characterize the history of the radiation. It was jump-started when several swamp-dwelling refugial populations, each of which were of older hybrid descent, met in the newly forming lake, where they fused into a single population, resuspending old admixture variation. Each population contributed a different set of ancient alleles from which a new adaptive radiation assembled in record time, involving additional fusion-fission cycles. We argue that repeated fusion-fission cycles in the history of a lineage make adaptive radiation fast and predictable.
Databáze: MEDLINE
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