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The genetic diversity and population structure of native horse breeds in Xinjiang, China.
Abstract: Xinjiang is a region renowned for its rich diversity of native horse breeds, making it one of the most affluent equine genetic resource areas in China. While prized for their high adaptability and tolerance to roughage, the conservation of these native breeds faces challenges from the introduction of external breeds and industrial changes. Furthermore, the unknown population structure of Xinjiang horse breeds has hindered effective conservation efforts. Unassigned: This study presents the first comprehensive Single Nucleotide Polymorphism (SNP) analysis of seven Xinjiang native horse breeds. We utilized 10X whole-genome sequencing to assess their genetic diversity, population structure, and genetic relationships. Unassigned: Our findings revealed a high level of population genetic diversity among the Xinjiang native horse breeds. These breeds exhibited significant genetic differentiation from other horse breeds originating from Europe, Central Asia, Western Asia, and other parts of China. Evidence of frequent historical gene flow was detected, particularly among breeds in northern Xinjiang, which were shown to be more closely related to each other. Unassigned: This study elucidates the distribution patterns, evolutionary characteristics, and substantial genetic diversity of Xinjiang's native horse breeds. The results provide crucial insights into their unique genetic background and population history. These findings offer valuable theoretical support for establishing core conservation groups of local germplasm, guiding future breeding programs for new cultivars, and further exploration of the characteristics inherent to Xinjiang's native horse genetic resources.
Copyright © 2025 Tang, Yang, Dawulietihan, Xue, Liu, Yalimaimaiti, Wang, Yang, Sun, Wang, Wumaier, Khizat, Assanbayev, Kozhanov, Attokurov, Obdunov, Li, Reheman, Zhou, Aizimu, Iskhan and Muhatai.
Publication Date: 2025-11-12 PubMed ID: 41306915PubMed Central: PMC12646806DOI: 10.3389/fgene.2025.1439312Google Scholar: Lookup The Equine Research Bank provides access to a large database of publicly available scientific literature. Inclusion in the Research Bank does not imply endorsement of study methods or findings by Mad Barn.
- Journal Article
Summary
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Overview
- This study analyzed the genetic diversity and population structure of seven native horse breeds from Xinjiang, China, using whole-genome sequencing to better understand their relationships and aid conservation efforts.
Introduction
- Xinjiang is known for its rich diversity of native horse breeds, representing a valuable genetic resource for China.
- These horses are notable for their adaptability and ability to thrive on rough forage, making them important for local livelihoods.
- However, the native breeds face threats from the introduction of external horse breeds and industrialization, which may reduce genetic uniqueness and diversity.
- Before this study, the population structure of these breeds was poorly understood, limiting targeted conservation efforts.
Methodology
- The researchers conducted the first comprehensive study using Single Nucleotide Polymorphism (SNP) analysis to investigate genetic variation among seven native horse breeds from Xinjiang.
- They employed 10X whole-genome sequencing technologies, which provide high-resolution genetic data by sequencing entire genomes at high coverage.
- This method allowed them to assess genetic diversity, relationships between horse populations, and historical gene flow patterns.
Key Findings
- High Population Genetic Diversity: The seven Xinjiang horse breeds displayed substantial genetic variation, suggesting a rich and diverse gene pool.
- Distinct Genetic Differentiation: These native breeds were genetically distinct from horse breeds originating from Europe, Central Asia, Western Asia, and other regions of China.
- Historical Gene Flow: Genetic data showed evidence of frequent interbreeding and gene exchange, especially among breeds from northern Xinjiang, indicating close relationships within this geographic area.
- Population Structure: The study found clear patterns in how these breeds are related, shaped by their geographical distribution and historical interactions.
Implications and Applications
- The research clarifies the evolutionary history and unique genetic makeup of Xinjiang’s native horses, providing a foundation for preserving their genetic identity.
- Findings support the establishment of core conservation populations to maintain and protect local horse genetic resources effectively.
- Results can guide breeding programs aimed at developing new cultivars that retain the important traits of Xinjiang’s native breeds.
- The improved understanding of genetic diversity and structure may help elucidate specific breed characteristics valuable for adaptation and performance under local conditions.
Conclusion
- This study is a significant contribution to knowledge about the genetic diversity and population structure of Xinjiang’s native horses.
- It emphasizes the importance of conserving these breeds amid external pressures and industrial changes by leveraging genomic data for sustainable breeding and management.
- The comprehensive genomic approach used provides a valuable model for studying other native livestock populations facing similar conservation challenges.
Cite This Article
APA
Tang C, Yang B, Dawulietihan G, Xue L, Liu S, Yalimaimaiti Y, Wang Q, Yang N, Sun X, Wang Y, Wumaier A, Khizat S, Assanbayev T, Kozhanov Z, Attokurov K, Obdunov E, Li H, Reheman A, Zhou X, Aizimu W, Iskhan K, Muhatai G.
(2025).
The genetic diversity and population structure of native horse breeds in Xinjiang, China.
Front Genet, 16, 1439312.
https://doi.org/10.3389/fgene.2025.1439312 Publication
Researcher Affiliations
- College of Life Science and Technology, Tarim University, Alar, Xinjiang, China.
- Xinjiang Production & Construction Corps Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin, Alar, Xinjiang, China.
- College of Life Science and Technology, Tarim University, Alar, Xinjiang, China.
- Xinjiang Production & Construction Corps Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin, Alar, Xinjiang, China.
- Agricultural (Animal Husbandry) Development Service in Tuerhong Township, Fuyun, Xinjiang, China.
- Animal Husbandry Workstation of Fuyun County, Fuyun, Xinjiang, China.
- Animal Husbandry Workstation of Balikun County, Balikun, Xinjiang, China.
- Animal Husbandry and Veterinary Station of Kalayagaqi Town, Yining, Xinjiang, China.
- Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production & Construction Corps, Alar, Xinjiang, China.
- College of Life Science and Technology, Tarim University, Alar, Xinjiang, China.
- Xinjiang Production & Construction Corps Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin, Alar, Xinjiang, China.
- Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production & Construction Corps, Alar, Xinjiang, China.
- Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production & Construction Corps, Alar, Xinjiang, China.
- Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production & Construction Corps, Alar, Xinjiang, China.
- Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production & Construction Corps, Alar, Xinjiang, China.
- Physiology, Morphology and Biochemistry, Kazakh National Agrarian Research University, Almaty, Kazakhstan.
- Zootechnology and Veterinary Medicine, Toraighyrov University, Pavlodar, Kazakhstan.
- Horse Breeding Department, Kazakh Research Institute of Livestock and Forage Production, Almaty, Kazakhstan.
- Osh State University, Osh, Kyrgyzstan.
- Osh State University, Osh, Kyrgyzstan.
- Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production & Construction Corps, Alar, Xinjiang, China.
- Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production & Construction Corps, Alar, Xinjiang, China.
- Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production & Construction Corps, Alar, Xinjiang, China.
- Xinjiang Production & Construction Corps Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin, Alar, Xinjiang, China.
- Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production & Construction Corps, Alar, Xinjiang, China.
- Physiology, Morphology and Biochemistry, Kazakh National Agrarian Research University, Almaty, Kazakhstan.
- College of Life Science and Technology, Tarim University, Alar, Xinjiang, China.
- Xinjiang Production & Construction Corps Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin, Alar, Xinjiang, China.
- Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production & Construction Corps, Alar, Xinjiang, China.
Conflict of Interest Statement
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
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