Natural selection shaped the rise and fall of passenger pigeon genomic diversity.

Autor: Murray GGR; Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, CA 95064, USA., Soares AER; Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, CA 95064, USA., Novak BJ; Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, CA 95064, USA.; Revive & Restore, Sausalito, CA 94965, USA., Schaefer NK; Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, CA 95064, USA., Cahill JA; Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, CA 95064, USA., Baker AJ; Department of Natural History, Royal Ontario Museum, Toronto, ON M5S 2C6, Canada., Demboski JR; Department of Zoology, Denver Museum of Nature and Science, Denver, CO 80205, USA., Doll A; Department of Zoology, Denver Museum of Nature and Science, Denver, CO 80205, USA., Da Fonseca RR; Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, Øster Voldgade 5-7, 1350 Copenhagen, Denmark., Fulton TL; Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, CA 95064, USA.; Environment and Climate Change Canada, 9250-49th Street, Edmonton, AB T6B 1K5, Canada., Gilbert MTP; Centre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, Øster Voldgade 5-7, 1350 Copenhagen, Denmark.; NTNU University Museum, 7491 Trondheim, Norway., Heintzman PD; Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, CA 95064, USA.; Tromsø University Museum, UiT-The Arctic University of Norway, 9037 Tromsø, Norway., Letts B; Department of Biology, The Pennsylvania State University, University Park, PA 16802, USA., McIntosh G; Collections Department, Rochester Museum and Science Center, Rochester, NY 14607, USA., O'Connell BL; Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, CA 95064, USA., Peck M; Department of Zoology, Denver Museum of Nature and Science, Denver, CO 80205, USA., Pipes ML; Marie-Lorraine Pipes, Zooarchaeologist Consultant, Victor, NY 14564, USA., Rice ES; Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, CA 95064, USA., Santos KM; Collections Department, Rochester Museum and Science Center, Rochester, NY 14607, USA., Sohrweide AG; A. Gregory Sohrweide D.D.S., Baldwinsville, NY 13027, USA., Vohr SH; Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, CA 95064, USA., Corbett-Detig RB; Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, CA 95064, USA.; University of California Santa Cruz Genomics Institute, 1156 High Street, Santa Cruz, CA 95064, USA., Green RE; Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, CA 95064, USA.; University of California Santa Cruz Genomics Institute, 1156 High Street, Santa Cruz, CA 95064, USA., Shapiro B; Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, CA 95064, USA. beth.shapiro@gmail.com.; University of California Santa Cruz Genomics Institute, 1156 High Street, Santa Cruz, CA 95064, USA.
Jazyk: angličtina
Zdroj: Science (New York, N.Y.) [Science] 2017 Nov 17; Vol. 358 (6365), pp. 951-954.
DOI: 10.1126/science.aao0960
Abstrakt: The extinct passenger pigeon was once the most abundant bird in North America, and possibly the world. Although theory predicts that large populations will be more genetically diverse, passenger pigeon genetic diversity was surprisingly low. To investigate this disconnect, we analyzed 41 mitochondrial and 4 nuclear genomes from passenger pigeons and 2 genomes from band-tailed pigeons, which are passenger pigeons' closest living relatives. Passenger pigeons' large population size appears to have allowed for faster adaptive evolution and removal of harmful mutations, driving a huge loss in their neutral genetic diversity. These results demonstrate the effect that selection can have on a vertebrate genome and contradict results that suggested that population instability contributed to this species's surprisingly rapid extinction.
(Copyright © 2017, American Association for the Advancement of Science.)
Databáze: MEDLINE
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