Study on the origin of the Baise horse based on whole-genome resequencing.
Abstract: The Baise horse, an indigenous horse breed mainly distributed in the Baise region of Guangxi province in southwest China, has a long history as draft animal. However, there is a lack of research regarding the origin and ancestral composition of the Baise horse. In this study, whole-genome resequencing data from 236 horses of seven Chinese indigenous horse breeds, five foreign horse breeds, and four Przewalski's horses were used to investigate the relationships between the Baise horse and other horse breeds. The results showed that foreign horse breeds had no significant impact on the formation of the Baise horse. The two southwestern horse populations, the Debao pony and the Jinjiang horse, exhibit the closest genetic affinity with the Baise horse. This is consistent with their adjacent geographical distribution. Analysis of the migration route revealed a gene flow from the Chakouyi horse into the Baise horse. In summary, our results confirm that the formation of the Baise horse did not involve participation from foreign breeds. Geographical distance emerges as a crucial factor in determining the genetic relationships with the Baise horse. Gene flows of indigenous horse breeds along ancient routes of trade activities had played a role in the formation of the Baise horse.
© 2024 Stichting International Foundation for Animal Genetics.
Publication Date: 2024-04-07 PubMed ID: 38584302DOI: 10.1111/age.13424Google Scholar: Lookup
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Summary
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The research focuses on tracing the origin and ancestral composition of the Baise horse, a native breed from southwestern China. Whole-genome resequencing data of multiple horse breeds revealed that foreign horse breeds didn’t significantly contribute to the Baise horse’s formation, and its closest genetic relations were with two other southwestern horse populations, the Debao pony and the Jinjiang horse.
Methods
- The study used whole-genome resequencing data from 236 horses belonging to several breeds, including seven indigenous Chinese horses, five foreign horse breeds, and four Przewalski’s horses. Whole-genome resequencing sheds light on a wide range of genetic variations and is a powerful tool for tracing origin and evolution.
- The investigators then analyzed the genetic relationships between the Baise horse and the various other horse breeds to trace the breed’s origin and ancestral makeup.
Findings
- The researchers found that foreign horse breeds didn’t significantly influence the Baise horse’s genesis. This negates any theoretical contribution from bodies outside of China in the formation of this breed.
- The genetic affinity of the Baise horse is closest to the Debao pony and Jinjiang horse, both of which are from the same southwestern region of China. This correlation hints at a significant role of geography, aligning with biological patterns where genetically similar species often share a spatial relationship.
- The study also noted a gene flow from the Chakouyi horse into the Baise horse, indicating a genetic contribution from the former in the formation of the latter.
Conclusion
- The study confirmed that the genesis of the Baise horse didn’t involve any participation from foreign breeds, implying that it is a native breed of China with no substantial crossbreeding with foreign species.
- Geographical proximity emerged as a critical factor in determining the genetic relationship in the case of the Baise horse. This means that the closer a breed was to the Baise horse in terms of geographical distribution, the more genetically similar it likely was.
- The researchers also suggested that trade activities along ancient routes might have facilitated the gene flow among indigenous horse breeds, leading to the formation of the Baise horse.
Cite This Article
APA
Lin X, Feng M, Li Y, Liu Y, Wang M, Li Y, Yang T, Zhao C.
(2024).
Study on the origin of the Baise horse based on whole-genome resequencing.
Anim Genet.
https://doi.org/10.1111/age.13424 Publication
Researcher Affiliations
- Equine Center, China Agricultural University, Beijing, China.
- College of Animal Science and Technology, China Agricultural University, Beijing, China.
- Beijing General Station of Animal Husbandry, Beijing, China.
- Equine Center, China Agricultural University, Beijing, China.
- College of Animal Science and Technology, China Agricultural University, Beijing, China.
- Equine Center, China Agricultural University, Beijing, China.
- College of Animal Science and Technology, China Agricultural University, Beijing, China.
- Equine Center, China Agricultural University, Beijing, China.
- College of Animal Science and Technology, China Agricultural University, Beijing, China.
- Equine Center, China Agricultural University, Beijing, China.
- College of Animal Science and Technology, China Agricultural University, Beijing, China.
- Equine Center, China Agricultural University, Beijing, China.
- College of Animal Science and Technology, China Agricultural University, Beijing, China.
- Equine Center, China Agricultural University, Beijing, China.
- College of Animal Science and Technology, China Agricultural University, Beijing, China.
- Equine Center, China Agricultural University, Beijing, China.
- College of Animal Science and Technology, China Agricultural University, Beijing, China.
- National Engineering Laboratory for Animal Breeding, Beijing, China.
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, Beijing, China.
- Beijing Key Laboratory of Animal Genetic Improvement, Beijing, China.
Grant Funding
- U23A20224 / The China Regional Innovation and Development Joint Fund Project sponsored by the National Natural Science Foundation
- 19221073 / The Project on the Third National Survey of the Livestock and Poultry Genetic Resources sponsored by the Ministry of Agriculture and Rural Affairs
- 125C0505 / The Project on the Survey of the Livestock and Poultry Genetic Resources in the Qinghai-Tibet Plateau sponsored by the Ministry of Agriculture and Rural Affairs
- Z171100002217072 / The project of the Beijing Key Laboratory for Genetic Improvement of Livestock and Poultry sponsored by the People's Government of Beijing Municipality
- IRT1191 / The Program for Changjiang Scholars and Innovative Research Team in University sponsored by the Ministry of Education
- The Germplasm Bank for Domesticated Animals sponsored by Ministry of Agriculture and Rural Affairs
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