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Zeng L, Liu HQ, Tu XL, Ji CM, Gou X, Esmailizadeh A, Wang S, Wang MS, Wang MC, Li XL, Charati H, Adeola AC, Moshood Adedokun RA, Oladipo O, Olaogun SC, Sanke OJ, Godwin F M, Cecily Ommeh S, Agwanda B, Kasiiti Lichoti J, Han JL, Zheng HK, Wang CF, Zhang YP, Frantz LAF, Wu DD. Genomes reveal selective sweeps in kiang and donkey for high-altitude adaptation. Zool Res 2021; 42:450-460. [PMID: 34156172 PMCID: PMC8317180 DOI: 10.24272/j.issn.2095-8137.2021.095] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Over the last several hundred years, donkeys have adapted to high-altitude conditions on the Tibetan Plateau. Interestingly, the kiang, a closely related equid species, also inhabits this region. Previous reports have demonstrated the importance of specific genes and adaptive introgression in divergent lineages for adaptation to hypoxic conditions on the Tibetan Plateau. Here, we assessed whether donkeys and kiangs adapted to the Tibetan Plateau via the same or different biological pathways and whether adaptive introgression has occurred. We assembled a de novo genome from a kiang individual and analyzed the genomes of five kiangs and 93 donkeys (including 24 from the Tibetan Plateau). Our analyses suggested the existence of a strong hard selective sweep at the EPAS1 locus in kiangs. In Tibetan donkeys, however, another gene, i.e., EGLN1, was likely involved in their adaptation to high altitude. In addition, admixture analysis found no evidence for interspecific gene flow between kiangs and Tibetan donkeys. Our findings indicate that despite the short evolutionary time scale since the arrival of donkeys on the Tibetan Plateau, as well as the existence of a closely related species already adapted to hypoxia, Tibetan donkeys did not acquire adaptation via admixture but instead evolved adaptations via a different biological pathway.
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Affiliation(s)
- Lin Zeng
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming, Yunnan 650204, China
| | - He-Qun Liu
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, China.,Department of Genetics, Albert Einstein College of Medicine, Bronx, New York, NY 10461, USA
| | - Xiao-Long Tu
- Annoroad Gene Tech. (Beijing) Co., Ltd., Beijing 100176, China
| | - Chang-Mian Ji
- Hainan Key Laboratory for Biosafety Monitoring and Molecular Breeding in Off-Season Reproduction Regions, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan 571101, China.,Biomarker Technologies Corporation, Beijing 101300, China
| | - Xiao Gou
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming, Yunnan 650201, China
| | - Ali Esmailizadeh
- Department of Animal Science, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, PB 76169-133, Iran
| | - Sheng Wang
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
| | - Ming-Shan Wang
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
| | | | - Xiao-Long Li
- Biomarker Technologies Corporation, Beijing 101300, China
| | - Hadi Charati
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, China.,Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming, Yunnan 650204, China
| | - Adeniyi C Adeola
- State Key Laboratory of Genetic Resources and Evolution, Yunnan Laboratory of Molecular Biology of Domestic Animals, Germplasm Bank of Wild Species, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, China.,Sino-Africa Joint Research Center, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
| | | | - Olatunbosun Oladipo
- Federal College of Animal Health and Production Technology, Moor-Plantation, Ibadan, Nigeria
| | | | - Oscar J Sanke
- Taraba State Ministry of Agriculture and Natural Resources, Jalingo 660221, Nigeria
| | | | - Sheila Cecily Ommeh
- Institute For Biotechnology Research Jomo Kenyatta University of Agriculture and Technology, Nairobi 62000-00200, Kenya.,Department of Zoology, National Museums of Kenya, Nairobi 40658-00100, Kenya
| | - Bernard Agwanda
- Department of Zoology, National Museums of Kenya, Nairobi 40658-00100, Kenya
| | - Jacqueline Kasiiti Lichoti
- State Department of Livestock, Ministry of Agriculture, Livestock, Fisheries and Irrigation, Nairobi, Kenya
| | - Jian-Lin Han
- CAAS-ILRI Joint Laboratory on Livestock and Forage Genetic Resources, Institute of Animal Science, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China
| | - Hong-Kun Zheng
- Biomarker Technologies Corporation, Beijing 101300, China
| | - Chang-Fa Wang
- Equus Laboratory, Dairy Cattle Research Center, Shandong Academy of Agricultural Sciences, Ji'nan, Shandong 250131, China.,Liaocheng Research Institute of Donkey High-Efficiency Breeding and Ecological Feeding, Liaocheng University, Liaocheng, Shandong 252059, China. E-mail:
| | - Ya-Ping Zhang
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, China.,Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences, Kunming, Yunnan 650223, China. E-mail:
| | - Laurent A F Frantz
- School of Biological and Chemical Sciences, Queen Mary University of London, Mile End Road, London E1 4NS, UK. E-mail:
| | - Dong-Dong Wu
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, China.,Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences, Kunming, Yunnan 650223, China.,Institute of Three-River-Source National Park, Chinese Academy of Sciences, Qinghai 810008, China. E-mail:
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Lichoti JK, Davies J, Kitala PM, Githigia SM, Okoth E, Maru Y, Bukachi SA, Bishop RP. Social network analysis provides insights into African swine fever epidemiology. Prev Vet Med 2016; 126:1-10. [PMID: 26848113 DOI: 10.1016/j.prevetmed.2016.01.019] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Revised: 01/18/2016] [Accepted: 01/22/2016] [Indexed: 11/17/2022]
Abstract
Pig movements play a significant role in the spread of economically important infectious diseases such as the African swine fever. Characterization of movement networks between pig farms and through other types of farm and household enterprises that are involved in pig value chains can provide useful information on the role that different participants in the networks play in pathogen transmission. Analysis of social networks that underpin these pig movements can reveal pathways that are important in the transmission of disease, trade in commodities, the dissemination of information and the influence of behavioural norms. We assessed pig movements among pig keeping households within West Kenya and East Uganda and across the shared Kenya-Uganda border in the study region, to gain insight into within-country and trans-boundary pig movements. Villages were sampled using a randomized cluster design. Data were collected through interviews in 2012 and 2013 from 683 smallholder pig-keeping households in 34 villages. NodeXL software was used to describe pig movement networks at village level. The pig movement and trade networks were localized and based on close social networks involving family ties, friendships and relationships with neighbours. Pig movement network modularity ranged from 0.2 to 0.5 and exhibited good community structure within the network implying an easy flow of knowledge and adoption of new attitudes and beliefs, but also promoting an enhanced rate of disease transmission. The average path length of 5 defined using NodeXL, indicated that disease could easily reach every node in a cluster. Cross-border boar service between Uganda and Kenya was also recorded. Unmonitored trade in both directions was prevalent. While most pig transactions in the absence of disease, were at a small scale (<5km) and characterized by regular agistment, most pig sales during ASF outbreaks were to traders or other farmers from outside the sellers' village at a range of >10km. The close social relationships between actors in pig movement networks indicate the potential for possible interventions to develop shared norms and mutually accepted protocols amongst smallholder pig keepers to better manage the risk of ASF introduction and transmission.
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Affiliation(s)
- Jacqueline Kasiiti Lichoti
- Ministry of Agriculture, Livestock and Fisheries, State Department of Veterinary Services, Private Bag-00625, Nairobi, Kenya; University of Nairobi, Department of Public Health, Pharmacology and Toxicology, P.O. Box 29053, Nairobi 00625, Kenya.
| | - Jocelyn Davies
- Commonwealth Scientific and Industrial Research Organization, Land and Water Flagship, Business & Innovation Centre, Desert Knowledge Precinct, Alice Springs 0870, NT, Australia.
| | - Philip M Kitala
- University of Nairobi, Department of Public Health, Pharmacology and Toxicology, P.O. Box 29053, Nairobi 00625, Kenya.
| | - Samuel M Githigia
- University of Nairobi, Department of Veterinary Pathology, Microbiology and Parasitology, P.O. Box 29053, Nairobi 00625, Kenya.
| | - Edward Okoth
- International Livestock Research Institute and Biosciences Eastern and Central Africa, P.O. Box 30709, Nairobi 00100, Kenya.
| | - Yiheyis Maru
- Commonwealth Scientific and Industrial Research Organization, Land and Water Flagship, Business & Innovation Centre, Desert Knowledge Precinct, Alice Springs 0870, NT, Australia; International Livestock Research Institute and Biosciences Eastern and Central Africa, P.O. Box 30709, Nairobi 00100, Kenya.
| | - Salome A Bukachi
- University of Nairobi, Institute of Anthropology, Gender & African Studies, P.O. Box 30197, Nairobi 00100, Kenya.
| | - Richard P Bishop
- Commonwealth Scientific and Industrial Research Organization, Land and Water Flagship, Business & Innovation Centre, Desert Knowledge Precinct, Alice Springs 0870, NT, Australia; International Livestock Research Institute and Biosciences Eastern and Central Africa, P.O. Box 30709, Nairobi 00100, Kenya.
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