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8 results for “Oryx”
Chromosomal-level genome assembly of the scimitar‐horned oryx: insights into diversity and demography of a species extinct in the wild
<p>Captive populations provide a valuable insurance against extinctions in the wild. However, they are also vulnerable to the negative impacts of inbreeding, selection and drift. Genetic information is therefore considered a critical aspect of conservation management. Recent developments in sequencing technologies have the potential to improve the outcomes of management programmes; however, the transfer of these approaches to applied conservation has been slow. The scimitar‐horned oryx (<i>Oryx dammah)</i> is a North African antelope that has been extinct in the wild since the early 1980s and is the focus of a large‐scale and long‐term reintroduction project. To enable the selection of suitable founder individuals, facilitate post‐release monitoring and improve captive breeding management, comprehensive genomic resources are required. Here, we used 10X Chromium sequencing together with Hi‐C contact mapping to develop a chromosomal‐level genome assembly for the species. The resulting assembly contained 29 chromosomes with a scaffold N50 of 100.4 Mb, and displayed strong chromosomal synteny with the cattle genome. Using resequencing data from six additional individuals, we demonstrated relatively high genetic diversity in the scimitar‐horned oryx compared to other mammals, despite it having experienced a strong founding event in captivity. Additionally, the level of diversity across populations varied according to management strategy. Finally, we uncovered a dynamic demographic history that coincided with periods of climate variation during the Pleistocene. Overall, our study provides a clear example of how genomic data can uncover valuable insights into captive populations and contributes important resources to guide future management decisions of an endangered species.</p>
Chromosomal-level genome assembly of the scimitar‐horned oryx: insights into diversity and demography of a species extinct in the wild
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Subspecies and Distribution. T. o. oryx Pallas, 1766 — S Africa including Namibia, Botswana, Swaziland, and South Africa. 1. o. livingstonii Sclater, 1864 — S & E Africa; N limit through Angola and S DR Congo, then N to Rwanda, Uganda, SE Sudan, SW Ethiopia, Kenya, S Somalia, and Tanzania. in Bovidae
Subspecies and Distribution. T. o. oryx Pallas, 1766 — S Africa including Namibia, Botswana, Swaziland, and South Africa. 1. o. livingstonii Sclater, 1864 — S & E Africa; N limit through Angola and S DR Congo, then N to Rwanda, Uganda, SE Sudan, SW Ethiopia, Kenya, S Somalia, and Tanzania.
On following pages: 35. Cape Kudu (Strepsiceros strepsiceros); 36. Zambezi Kudu (Strepsiceros zambesiensis); 37. Northern Kudu (Strepsiceros chora); 38. Western Kudu (Strepsiceros cotton); 39. Common Eland (Taurotragus oryx); 40. Giant Eland (Taurotragus derbianus). in Bovidae
On following pages: 35. Cape Kudu (Strepsiceros strepsiceros); 36. Zambezi Kudu (Strepsiceros zambesiensis); 37. Northern Kudu (Strepsiceros chora); 38. Western Kudu (Strepsiceros cotton); 39. Common Eland (Taurotragus oryx); 40. Giant Eland (Taurotragus derbianus).
On following pages: 141. Gemsbok (Oryx gazella); 142. Scimitar-horned Oryx (Oryx dammah); 143. Arabian Oryx (Oryx leucoryx). in Bovidae
On following pages: 141. Gemsbok (Oryx gazella); 142. Scimitar-horned Oryx (Oryx dammah); 143. Arabian Oryx (Oryx leucoryx).
Distribution. Extinct in the wild by 1972, free-ranging Arabian Oryxes have been reestablished in Israel, WC Oman, and SW Saudi Arabia. in Bovidae
Distribution. Extinct in the wild by 1972, free-ranging Arabian Oryxes have been reestablished in Israel, WC Oman, and SW Saudi Arabia.
Distribution. Extinct in the wild. The Scimitar-horned Oryx originally occurred on the southern and northern edges of the Sahara Desert. in Bovidae
Distribution. Extinct in the wild. The Scimitar-horned Oryx originally occurred on the southern and northern edges of the Sahara Desert.
Distribution. SE Kenya and NE Tanzania. The Fringe-eared Oryx is geographically separated from the Galla Oryx by the Tana River and Aberdare Mts in S Kenya. Its range began to spread into the Serengeti in the 1970s. in Bovidae
Distribution. SE Kenya and NE Tanzania. The Fringe-eared Oryx is geographically separated from the Galla Oryx by the Tana River and Aberdare Mts in S Kenya. Its range began to spread into the Serengeti in the 1970s.
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