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Historical population declines prompted significant genomic erosion in the northern and southern white rhinoceros ( Ceratotherium simum )

Sánchez‐Barreiro, Fátima (författare)
GLOBE Institute University of Copenhagen Copenhagen Denmark
Gopalakrishnan, Shyam (författare)
GLOBE Institute University of Copenhagen Copenhagen Denmark;DTU Bioinformatics Kongens Lyngby Hovedstaden Denmark;Center for Evolutionary Hologenomics University of Copenhagen Copenhagen Denmark
Ramos‐Madrigal, Jazmín (författare)
GLOBE Institute University of Copenhagen Copenhagen Denmark
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Westbury, Michael V. (författare)
GLOBE Institute University of Copenhagen Copenhagen Denmark
Manuel, Marc (författare)
Institut de Biologia Evolutiva (Consejo Superior de Investigaciones Científicas–Universitat Pompeu Fabra) Barcelona Biomedical Research Park Barcelona Spain
Margaryan, Ashot (författare)
GLOBE Institute University of Copenhagen Copenhagen Denmark;Center for Evolutionary Hologenomics University of Copenhagen Copenhagen Denmark
Ciucani, Marta M. (författare)
GLOBE Institute University of Copenhagen Copenhagen Denmark
Vieira, Filipe G. (författare)
GLOBE Institute University of Copenhagen Copenhagen Denmark
Patramanis, Yannis (författare)
GLOBE Institute University of Copenhagen Copenhagen Denmark
Kalthoff, Daniela C. (författare)
Naturhistoriska riksmuseet,Enheten för zoologi
Timmons, Zena (författare)
Department of Natural Sciences National Museums Scotland Edinburgh UK
Sicheritz‐Pontén, Thomas (författare)
GLOBE Institute University of Copenhagen Copenhagen Denmark;Centre of Excellence for Omics‐Driven Computational Biodiscovery (COMBio) Faculty of Applied Sciences AIMST University Kedah Malaysia
Dalén, Love (författare)
Naturhistoriska riksmuseet,Enheten för bioinformatik och genetik,Centre for Palaeogenetics Stockholm Sweden;Department of Bioinformatics and Genetics Swedish Museum of Natural History Stockholm Sweden
Ryder, Oliver A. (författare)
San Diego Zoo Institute for Conservation Research Escondido CA USA
Zhang, Guojie (författare)
Section for Ecology and Evolution Department of Biology University of Copenhagen Copenhagen Denmark;State Key Laboratory of Genetic Resources and Evolution Kunming Institute of ZoologyChinese Academy of Sciences Kunming China;Center for Excellence in Animal Evolution and Genetics Chinese Academy of Sciences Kunming China;BGI‐Shenzhen Shenzhen China
Marquès‐Bonet, Tomás (författare)
Institut de Biologia Evolutiva (Consejo Superior de Investigaciones Científicas–Universitat Pompeu Fabra) Barcelona Biomedical Research Park Barcelona Spain;National Centre for Genomic Analysis–Centre for Genomic Regulation Barcelona Institute of Science and Technology Barcelona Spain;Institucio Catalana de Recerca i Estudis Avançats (ICREA) Barcelona Spain
Moodley, Yoshan (författare)
Department of Zoology University of Venda Thohoyandou South Africa
Gilbert, M. Thomas P. (författare)
GLOBE Institute University of Copenhagen Copenhagen Denmark;Center for Evolutionary Hologenomics University of Copenhagen Copenhagen Denmark;Norwegian University of Science and Technology University Museum Trondheim Norway
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 (creator_code:org_t)
2021-07-07
2021
Engelska.
Ingår i: Molecular Ecology. - : Wiley. - 0962-1083 .- 1365-294X. ; 30:23, s. 6355-6369
Relaterad länk:
https://doi.org/10.1...
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https://nrm.diva-por... (primary) (Raw object)
https://onlinelibrar...
https://urn.kb.se/re...
https://doi.org/10.1...
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  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
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  • Large vertebrates are extremely sensitive to anthropogenic pressure, and their populations are declining fast. The white rhinoceros (Ceratotherium simum) is a paradigmatic case: this African megaherbivore has suffered a remarkable decline in the last 150 years due to human activities. Its subspecies, the northern (NWR) and the southern white rhinoceros (SWR), however, underwent opposite fates: the NWR vanished quickly, while the SWR recovered after the severe decline. Such demographic events are predicted to have an erosive effect at the genomic level, linked to the extirpation of diversity, and increased genetic drift and inbreeding. However, there is little empirical data available to directly reconstruct the subtleties of such processes in light of distinct demographic histories. Therefore, we generated a whole-genome, temporal data set consisting of 52 resequenced white rhinoceros genomes, representing both subspecies at two time windows: before and during/after the bottleneck. Our data reveal previously unknown population structure within both subspecies, as well as quantifiable genomic erosion. Genome-wide heterozygosity decreased significantly by 10% in the NWR and 36% in the SWR, and inbreeding coefficients rose significantly by 11% and 39%, respectively. Despite the remarkable loss of genomic diversity and recent inbreeding it suffered, the only surviving subspecies, the SWR, does not show a significant accumulation of genetic load compared to its historical counterpart. Our data provide empirical support for predictions about the genomic consequences of shrinking populations, and our findings have the potential to inform the conservation efforts of the remaining white rhinoceroses.

Ämnesord

NATURVETENSKAP  -- Biologi -- Genetik (hsv//swe)
NATURAL SCIENCES  -- Biological Sciences -- Genetics (hsv//eng)

Nyckelord

Ecosystems and species history
Ekosystem och arthistoria

Publikations- och innehållstyp

ref (ämneskategori)
art (ämneskategori)

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