The critically endangered vaquita is not doomed to extinction by inbreeding depression
| Autor: | Jacqueline A. Robinson, Christopher C. Kyriazis, Sergio F. Nigenda-Morales, Annabel C. Beichman, Lorenzo Rojas-Bracho, Kelly M. Robertson, Michael C. Fontaine, Robert K. Wayne, Kirk E. Lohmueller, Barbara L. Taylor, Phillip A. Morin |
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| Přispěvatelé: | Fontaine lab, University of California [San Francisco] (UC San Francisco), University of California (UC), University of California [Los Angeles] (UCLA), Maladies infectieuses et vecteurs : écologie, génétique, évolution et contrôle (MIVEGEC), Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Université de Montpellier (UM), Groningen Institute for Evolutionary Life Sciences [Groningen] (GELIFES), University of Groningen [Groningen], Centre de Recherche en Ecologie et Evolution de la Santé (CREES), Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM) |
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
Conservation of Natural Resources
[SDV.GEN.GPO]Life Sciences [q-bio]/Genetics/Populations and Evolution [q-bio.PE] Multidisciplinary Genome Inbreeding Depression Endangered Species Genetic Variation Phocoena/genetics [SDV.BIBS]Life Sciences [q-bio]/Quantitative Methods [q-bio.QM] Article [SDV.GEN.GA]Life Sciences [q-bio]/Genetics/Animal genetics [SDV.BA.ZV]Life Sciences [q-bio]/Animal biology/Vertebrate Zoology Phocoena Animals Inbreeding [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
| Zdroj: | Science, 376(6593), 635-639. AMER ASSOC ADVANCEMENT SCIENCE Science Science, 2022, 376 (6593), pp.635-639. ⟨10.1126/science.abm1742⟩ |
| ISSN: | 0036-8075 1095-9203 |
| DOI: | 10.1126/science.abm1742⟩ |
| Popis: | In cases of severe wildlife population decline, a key question is whether recovery efforts will be impeded by genetic factors, such as inbreeding depression. Decades of excess mortality from gillnet fishing have driven Mexico’s vaquita porpoise ( Phocoena sinus ) to ~10 remaining individuals. We analyzed whole-genome sequences from 20 vaquitas and integrated genomic and demographic information into stochastic, individual-based simulations to quantify the species’ recovery potential. Our analysis suggests that the vaquita’s historical rarity has resulted in a low burden of segregating deleterious variation, reducing the risk of inbreeding depression. Similarly, genome-informed simulations suggest that the vaquita can recover if bycatch mortality is immediately halted. This study provides hope for vaquitas and other naturally rare endangered species and highlights the utility of genomics in predicting extinction risk. |
| Databáze: | OpenAIRE |
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