Genome-wide diversity in the California condor tracks its prehistoric abundance and decline

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dc.citation.firstpage2939en_US
dc.citation.issueNumber13en_US
dc.citation.journalTitleCurrent Biologyen_US
dc.citation.lastpage2.95E+08en_US
dc.citation.volumeNumber31en_US
dc.contributor.authorRobinson, Jacqueline A.en_US
dc.contributor.authorBowie, Rauri C. K.en_US
dc.contributor.authorDudchenko, Olgaen_US
dc.contributor.authorAiden, Erez Liebermanen_US
dc.contributor.authorHendrickson, Sher L.en_US
dc.contributor.authorSteiner, Cynthia C.en_US
dc.contributor.authorRyder, Oliver A.en_US
dc.contributor.authorMindell, David P.en_US
dc.contributor.authorWall, Jeffrey D.en_US
dc.contributor.orgCenter for Theoretical and Biological Physicsen_US
dc.date.accessioned2021-07-30T15:21:17Zen_US
dc.date.available2021-07-30T15:21:17Zen_US
dc.date.issued2021en_US
dc.description.abstractDue to their small population sizes, threatened and endangered species frequently suffer from a lack of genetic diversity, potentially leading to inbreeding depression and reduced adaptability.1 During the latter half of the twentieth century, North America’s largest soaring bird,2 the California condor (Gymnogyps californianus; Critically Endangered3), briefly went extinct in the wild. Though condors once ranged throughout North America, by 1982 only 22 individuals remained. Following decades of captive breeding and release efforts, there are now >300 free-flying wild condors and ∼200 in captivity. The condor’s recent near-extinction from lead poisoning, poaching, and loss of habitat is well documented,4 but much about its history remains obscure. To fill this gap and aid future management of the species, we produced a high-quality chromosome-length genome assembly for the California condor and analyzed its genome-wide diversity. For comparison, we also examined the genomes of two close relatives: the Andean condor (Vultur gryphus; Vulnerable3) and the turkey vulture (Cathartes aura; Least Concern3). The genomes of all three species show evidence of historic population declines. Interestingly, the California condor genome retains a high degree of variation, which our analyses reveal is a legacy of its historically high abundance. Correlations between genome-wide diversity and recombination rate further suggest a history of purifying selection against linked deleterious alleles, boding well for future restoration. We show how both long-term evolutionary forces and recent inbreeding have shaped the genome of the California condor, and provide crucial genomic resources to enable future research and conservation.en_US
dc.identifier.citationRobinson, Jacqueline A., Bowie, Rauri C. K., Dudchenko, Olga, et al.. "Genome-wide diversity in the California condor tracks its prehistoric abundance and decline." <i>Current Biology,</i> 31, no. 13 (2021) Elsevier: 2939-2946.e5. https://doi.org/10.1016/j.cub.2021.04.035.en_US
dc.identifier.digital1-s2-0-S0960982221005480-mainen_US
dc.identifier.doihttps://doi.org/10.1016/j.cub.2021.04.035en_US
dc.identifier.urihttps://hdl.handle.net/1911/111041en_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.rightsThis is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).en_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/).en_US
dc.titleGenome-wide diversity in the California condor tracks its prehistoric abundance and declineen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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