The Origin of a Coastal Indigenous Horse Breed in China Revealed by Genome-Wide SNP Data.
Abstract: The Jinjiang horse is a unique Chinese indigenous horse breed distributed in the southern coastal areas, but the ancestry of Jinjiang horses is not well understood. Here, we used Equine SNP70 Bead Array technology to genotype 301 horses representing 10 Chinese indigenous horse breeds, and we integrated the published genotyped data of 352 individuals from 14 foreign horse breeds to study the relationships between Jinjiang horses and horse breeds from around the world. Principal component analysis (PCA), linkage disequilibrium (LD), runs of homozygosity (ROH) analysis, and ancestry estimating methods were conducted to study the population relationships and the ancestral sources and genetic structure of Jinjiang horses. The results showed that there is no close relationship between foreign horse breeds and Jinjiang horses, and Jinjiang horses shared a similar genetic background with Baise horses. TreeMix analysis revealed that there was gene flow from Chakouyi horses to Jinjiang horses. The ancestry analysis showed that Baise horses and Chakouyi horses are the most closely related ancestors of Jinjiang horses. In conclusion, our results showed that Jinjiang horses have a native origin and that Baise horses and Chakouyi horses were key ancestral sources of Jinjiang horses. The study also suggested that ancient trade activities and the migration of human beings had important effects on indigenous horse breeds in China.
Publication Date: 2019-03-21 PubMed ID: 30901931PubMed Central: PMC6471023DOI: 10.3390/genes10030241Google Scholar: Lookup
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- Journal Article
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Summary
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This study unravels the origins of the Jinjiang horse, a unique breed from the coastal regions of China, using advanced genotyping technology. The research suggests that Jinjiang horses are indigenous to southern China, primarily sharing a genetic background with Baise and Chakouyi horses.
Methodology
- The researchers employed Equine SNP70 Bead Array technology to genotype 301 horses from 10 different indigenous Chinese breeds.
- This data was integrated with previous genotyping data from 352 horses across 14 foreign breeds to compare and contrast the genetic makeup of Jinjiang horses with other horse breeds globally.
Analysis Techniques
- Principal component analysis (PCA), linkage disequilibrium (LD), and runs of homozygosity (ROH) analyses were utilized to study the population relationships.
- Ancestry estimating methods were used to determine the ancestral sources and genetic structure of Jinjiang horses.
Findings
- The study revealed that there wasn’t a close genetic relationship between Jinjiang horses and the foreign horse breeds used in the comparison.
- Similarities were found between the gene pool of Jinjiang and Baise horses, indicating a shared genetic lineage between the two breeds.
- Analysis through TreeMix revealed gene flow from Chakouyi horses into Jinjiang horses, suggesting natural horse breeding or intentional crossbreeding in the past.
- Ancestry analysis showed Baise and Chakouyi horses as the closest relatives to Jinjiang horses, thus suggesting that they are the main ancestral sources of this coastal breed.
Conclusion
- The study concluded that Jinjiang horses have native origins and are not related to foreign breeds.
- It indicates that Baise horses and Chakouyi horses played a critical role as primary ancestral sources of Jinjiang horses.
- The research also suggests that historical trade activities and human migration significantly influenced indigenous horse breeds in China.
Cite This Article
APA
Ma H, Wang S, Zeng G, Guo J, Guo M, Dong X, Hua G, Liu Y, Wang M, Ling Y, Ding X, Zhao C, Wu C.
(2019).
The Origin of a Coastal Indigenous Horse Breed in China Revealed by Genome-Wide SNP Data.
Genes (Basel), 10(3), 241.
https://doi.org/10.3390/genes10030241 Publication
Researcher Affiliations
- College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China. B1303258@cau.edu.cn.
- Equine Center, China Agricultural University, Beijing, 100193, China. B1303258@cau.edu.cn.
- National Engineering Laboratory for Animal Breeding, Beijing, 100193, China. B1303258@cau.edu.cn.
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, Beijing, 100193, China. B1303258@cau.edu.cn.
- College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China. Shengwang@cau.edu.cn.
- Jinjiang Animal Husbandry and Veterinary Station, Fujian, 362200, China. 13655922266@163.com.
- Jinjiang Animal Husbandry and Veterinary Station, Fujian, 362200, China. m15764251673@163.com.
- Jinjiang Animal Husbandry and Veterinary Station, Fujian, 362200, China. guominghao_1325@163.com.
- College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China. xgdong@cau.edu.cn.
- College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China. hgyyxg@cau.edu.cn.
- College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China. yliu316@cau.edu.cn.
- Equine Center, China Agricultural University, Beijing, 100193, China. yliu316@cau.edu.cn.
- National Engineering Laboratory for Animal Breeding, Beijing, 100193, China. yliu316@cau.edu.cn.
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, Beijing, 100193, China. yliu316@cau.edu.cn.
- College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China. haohe@cau.edu.cn.
- Equine Center, China Agricultural University, Beijing, 100193, China. haohe@cau.edu.cn.
- National Engineering Laboratory for Animal Breeding, Beijing, 100193, China. haohe@cau.edu.cn.
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, Beijing, 100193, China. haohe@cau.edu.cn.
- College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China. lingzi@cau.edu.cn.
- College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China. xding@cau.edu.cn.
- National Engineering Laboratory for Animal Breeding, Beijing, 100193, China. xding@cau.edu.cn.
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, Beijing, 100193, China. xding@cau.edu.cn.
- College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China. cjzhao@cau.edu.cn.
- Equine Center, China Agricultural University, Beijing, 100193, China. cjzhao@cau.edu.cn.
- National Engineering Laboratory for Animal Breeding, Beijing, 100193, China. cjzhao@cau.edu.cn.
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, Beijing, 100193, China. cjzhao@cau.edu.cn.
- Beijing Key Laboratory for Genetic Improvement of Livestock and Poultry, Beijing, 100193, China. cjzhao@cau.edu.cn.
- College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China. chxwu@cau.edu.cn.
- Equine Center, China Agricultural University, Beijing, 100193, China. chxwu@cau.edu.cn.
- National Engineering Laboratory for Animal Breeding, Beijing, 100193, China. chxwu@cau.edu.cn.
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, Beijing, 100193, China. chxwu@cau.edu.cn.
MeSH Terms
- Animals
- Breeding
- China
- Evolution, Molecular
- Gene Flow
- Homozygote
- Horses / classification
- Horses / genetics
- Linkage Disequilibrium
- Oligonucleotide Array Sequence Analysis / veterinary
- Phylogeny
- Polymorphism, Single Nucleotide
- Principal Component Analysis
Conflict of Interest Statement
The authors declare no competing or financial interests.
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Citations
This article has been cited 6 times.- Kang Z, Shi J, Liu T, Zhang Y, Zhang Q, Liu Z, Wang J, Cheng S. Genome-wide single-nucleotide polymorphism data and mitochondrial hypervariable region 1 nucleotide sequence reveal the origin of the Akhal-Teke horse.. Anim Biosci 2023 Oct;36(10):1499-1507.
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