The genomic footprint of whaling and isolation in fin whale populations.

Autor: Nigenda-Morales SF; Advanced Genomics Unit, National Laboratory of Genomics for Biodiversity (Langebio), Center for Research and Advanced Studies (Cinvestav), Irapuato, Guanajuato, 36824, Mexico. snigenda@csusm.edu.; Department of Biological Sciences, California State University San Marcos, San Marcos, CA, 92096, USA. snigenda@csusm.edu., Lin M; Department of Ecology and Evolutionary Biology, University of California, Los Angeles, Los Angeles, CA, 90095, USA. meixilin@ucla.edu.; Department of Plant Biology, Carnegie Institution for Science, Stanford, CA, 94305, USA. meixilin@ucla.edu., Nuñez-Valencia PG; Advanced Genomics Unit, National Laboratory of Genomics for Biodiversity (Langebio), Center for Research and Advanced Studies (Cinvestav), Irapuato, Guanajuato, 36824, Mexico.; Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México (UNAM), Cuernavaca, Morelos, México., Kyriazis CC; Department of Ecology and Evolutionary Biology, University of California, Los Angeles, Los Angeles, CA, 90095, USA., Beichman AC; Department of Genome Sciences, University of Washington, Seattle, WA, 98195, USA., Robinson JA; Institute for Human Genetics, University of California, San Francisco (UCSF), San Francisco, CA, 94143, USA., Ragsdale AP; Advanced Genomics Unit, National Laboratory of Genomics for Biodiversity (Langebio), Center for Research and Advanced Studies (Cinvestav), Irapuato, Guanajuato, 36824, Mexico.; Department of Integrative Biology, University of Wisconsin, Madison, WI, 53706, USA., Urbán R J; Departamento de Ciencias Marinas y Costeras, Universidad Autónoma de Baja California Sur (UABCS), La Paz, Baja California Sur, Mexico., Archer FI; Marine Mammal and Turtle Division, Southwest Fisheries Science Center, La Jolla, CA, 92037, USA., Viloria-Gómora L; Departamento de Ciencias Marinas y Costeras, Universidad Autónoma de Baja California Sur (UABCS), La Paz, Baja California Sur, Mexico., Pérez-Álvarez MJ; Escuela de Medicina Veterinaria, Facultad de Medicina y Ciencias de la Salud, Universidad Mayor, Santiago, Chile.; Millennium Institute Biodiversity of Antarctic and Subantarctic Ecosystems (BASE), Universidad de Chile, Santiago, Chile., Poulin E; Millennium Institute Biodiversity of Antarctic and Subantarctic Ecosystems (BASE), Universidad de Chile, Santiago, Chile., Lohmueller KE; Department of Ecology and Evolutionary Biology, University of California, Los Angeles, Los Angeles, CA, 90095, USA. klohmueller@g.ucla.edu.; Interdepartmental Program in Bioinformatics, University of California, Los Angeles, CA, 90095, USA. klohmueller@g.ucla.edu.; Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, CA, USA. klohmueller@g.ucla.edu., Moreno-Estrada A; Advanced Genomics Unit, National Laboratory of Genomics for Biodiversity (Langebio), Center for Research and Advanced Studies (Cinvestav), Irapuato, Guanajuato, 36824, Mexico. andres.moreno@cinvestav.mx., Wayne RK; Department of Ecology and Evolutionary Biology, University of California, Los Angeles, Los Angeles, CA, 90095, USA.
Jazyk: angličtina
Zdroj: Nature communications [Nat Commun] 2023 Sep 12; Vol. 14 (1), pp. 5465. Date of Electronic Publication: 2023 Sep 12.
DOI: 10.1038/s41467-023-40052-z
Abstrakt: Twentieth century industrial whaling pushed several species to the brink of extinction, with fin whales being the most impacted. However, a small, resident population in the Gulf of California was not targeted by whaling. Here, we analyzed 50 whole-genomes from the Eastern North Pacific (ENP) and Gulf of California (GOC) fin whale populations to investigate their demographic history and the genomic effects of natural and human-induced bottlenecks. We show that the two populations diverged ~16,000 years ago, after which the ENP population expanded and then suffered a 99% reduction in effective size during the whaling period. In contrast, the GOC population remained small and isolated, receiving less than one migrant per generation. However, this low level of migration has been crucial for maintaining its viability. Our study exposes the severity of whaling, emphasizes the importance of migration, and demonstrates the use of genome-based analyses and simulations to inform conservation strategies.
(© 2023. Springer Nature Limited.)
Databáze: MEDLINE
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