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Genetic diversity and population structure of sheep (Ovis aries) in Sichuan, China
- Source :
- PLoS ONE, PLoS ONE, Vol 16, Iss 9, p e0257974 (2021)
- Publication Year :
- 2021
-
Abstract
- Sichuan, China, has abundant genetic resources of sheep (Ovis aries). However, their genetic diversity and population structure have been less studied, especially at the genome-wide level. In the present study, we employed the specific-locus amplified fragment sequencing for identifying genome-wide single nucleotide polymorphisms (SNPs) among five breeds of sheep distributed in Sichuan, including three local pure breeds, one composite breed, and one exotic breed of White Suffolk. From 494 million clean paired-end reads, we obtained a total of 327,845 high-quality SNPs that were evenly distributed among all 27 chromosomes, with a transition/transversion ratio of 2.56. Based on this SNP panel, we found that the overall nucleotide diversity was 0.2284 for all five breeds, with the highest and lowest diversity observed in Mage sheep (0.2125) and Butuo Black (0.1963) sheep, respectively. Both Wright’s fixation index and Identity-by-State distance revealed that all individuals of Liangshan Semifine-wool, White Suffolk, and Butuo Black sheep were respectively clustered together, and the breeds could be separated from each other, whereas Jialuo and Mage sheep had the closest genetic relationship and could not be distinguished from each other. In conclusion, we provide a reference panel of genome-wide and high-quality SNPs in five sheep breeds in Sichuan, by which their genetic diversity and population structures were investigated.
- Subjects :
- Male
Veterinary medicine
Conservation Biology
Single Nucleotide Polymorphisms
Fixation index
Nucleotide diversity
Geographical Locations
Gene Frequency
Ovis
Conservation Science
Mammals
education.field_of_study
Multidisciplinary
Ecology
Geography
Eukaryota
Ruminants
Genomics
Breed
Phylogeography
Biogeography
Vertebrates
Conservation Genetics
Medicine
Female
Research Article
China
Heterozygote
Asia
Ecological Metrics
Science
Population
Genetic relationship
Biology
Polymorphism, Single Nucleotide
Species Specificity
Genetics
Animals
education
Sheep, Domestic
Genetic diversity
Evolutionary Biology
Sheep
Population Biology
Ecology and Environmental Sciences
Organisms
Genetic Variation
Biology and Life Sciences
Species Diversity
biology.organism_classification
Chromosomes, Mammalian
Amniotes
People and Places
Earth Sciences
Purebred
Zoology
Population Genetics
Subjects
Details
- ISSN :
- 19326203
- Volume :
- 16
- Issue :
- 9
- Database :
- OpenAIRE
- Journal :
- PloS one
- Accession number :
- edsair.doi.dedup.....f7d5c73bb0527260faadc7258c9c0809