Diversity and Paleodemography of the Addax (Addax nasomaculatus), a Saharan Antelope on the Verge of Extinction
Autor: | Lei Chen, Elisabeth Hempel, Faysal Bibi, Johannes Müller, Frieder Mayer, Klaus-Peter Koepfli, José Horacio Grau, Sergei Kliver, Michael Hofreiter, Alexandra Trinks, Axel Barlow, Johanna L. A. Paijmans, Michael V. Westbury |
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Přispěvatelé: | Hempel, Elisabeth [0000-0002-0089-8741], Westbury, Michael V [0000-0003-0478-3930], Paijmans, Johanna L A [0000-0002-1938-7052], Barlow, Axel [0000-0002-5532-9458], Koepfli, Klaus-Peter [0000-0001-7281-0676], Hofreiter, Michael [0000-0003-0441-4705], Apollo - University of Cambridge Repository, Paijmans, Johanna LA [0000-0002-1938-7052], Westbury, Michael V. [0000-0003-0478-3930], Paijmans, Johanna L. A. [0000-0002-1938-7052] |
Jazyk: | angličtina |
Rok vydání: | 2021 |
Předmět: |
Antelope
Museum collections Hippotragus Population Zoology Conservation QH426-470 Extinction Biological Critically endangered Effective population size Addax nasomaculatus biology.animal Archival DNA PSMC Genetics Animals education Genetics (clinical) Bovid archival DNA education.field_of_study Genome assembly biology Extinct in the wild Population size Endangered Species conservation Biodiversity biology.organism_classification critically endangered Oryx Phylogeography Antelopes Genome Mitochondrial genome assembly Hybridization Genetic antelope bovid museum collections |
Zdroj: | Hempel, E, Westbury, M V, Grau, J H, Trinks, A, Paijmans, J L A, Kliver, S, Barlow, A, Mayer, F, Müller, J, Chen, L, Koepfli, K-P, Hofreiter, M & Bibi, F 2021, ' Diversity and Paleodemography of the Addax ( Addax nasomaculatus ), a Saharan Antelope on the Verge of Extinction ', Genes, vol. 12, no. 8, 1236 . https://doi.org/10.3390/genes12081236 Genes Volume 12 Issue 8 Genes, Vol 12, Iss 1236, p 1236 (2021) |
DOI: | 10.3390/genes12081236 |
Popis: | Since the 19th century, the addax (Addax nasomaculatus) has lost approximately 99% of its former range. Along with its close relatives, the blue antelope (Hippotragus leucophaeus) and the scimitar-horned oryx (Oryx dammah), the addax may be the third large African mammal species to go extinct in the wild in recent times. Despite this, the evolutionary history of this critically endangered species remains virtually unknown. To gain insight into the population history of the addax, we used hybridization capture to generate ten complete mitochondrial genomes from historical samples and assembled a nuclear genome. We found that both mitochondrial and nuclear diversity are low compared to other African bovids. Analysis of mitochondrial genomes revealed a most recent common ancestor ~32 kya (95% CI 11–58 kya) and weak phylogeographic structure, indicating that the addax likely existed as a highly mobile, panmictic population across its Sahelo–Saharan range in the past. PSMC analysis revealed a continuous decline in effective population size since ~2 Ma, with short intermediate increases at ~500 and ~44 kya. Our results suggest that the addax went through a major bottleneck in the Late Pleistocene, remaining at low population size prior to the human disturbances of the last few centuries. |
Databáze: | OpenAIRE |
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