ArticleGenetics, selection, evolution : GSE2021
Genetic diversity in global chicken breeds in relation to their genetic distances to wild populations.
Article in Genetics, selection, evolution : GSE, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed.
- Whole-genome sequencing identifies genetic diversity and adaptive signatures of hypoxia and ultraviolet radiation in Chinese chickens.Journal of advanced research · 2026Article
- Variation in oxytocin receptor DNA methylation in female chickens are associated with age, genetics, laying intensity, and housing conditions.Poultry science · 2026Article
- Genetic structure and selection signatures of Beijing-You chicken populations provide insight into breed conservation.Poultry science · 2026Article
- Impact of Eggshell Color Diversity on Hatchability, Translucency, and Quality Traits in Beijing-You Chicken Eggs.Animals : an open access journal from MDPI · 2025Article
- Immunogenetic diversity of MHC class II B-Lβ genes in Brazilian Caipiras (free-range) chickens laying blue eggs.Frontiers in immunology · 2025Article
- Purposive breeding strategies drive genetic differentiation in Thai fighting cock breeds.Genes & genomics · 2024Article
- PGC-based cryobanking, regeneration through germline chimera mating, and CRISPR/Cas9-mediated TYRP1 modification in indigenous Chinese chickens.Communications biology · 2024Article
- Exploring Evolutionary Adaptations and Genomic Advancements to Improve Heat Tolerance in Chickens.Animals : an open access journal from MDPI · 2024Review
- Genome-Wide Re-Sequencing Data Reveals the Population Structure and Selection Signatures of Tunchang Pigs in China.Animals : an open access journal from MDPI · 2023Article
- Differences among domestic chicken breeds in tonic immobility responses as a measure of fearfulness.PeerJ · 2023Article
- Analysis of Family Structure and Paternity Test of Tan Sheep in Yanchi Area, China.Animals : an open access journal from MDPI · 2022Article
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Authors and funding
6 authors.
Funding
Abstract
backgroundMigration of a population from its founder population is expected to cause a reduction of its genetic diversity and facilitates differentiation between the population and its founder population, as predicted by the theory of genetic isolation by distance. Consistent with that theory, a model of expansion from a single founder predicts that patterns of genetic diversity in populations can be explained well by their geographic expansion from their founders, which is correlated with genetic differentiation.
methodsTo investigate this in chicken, we estimated the relationship between the genetic diversity of 160 domesticated chicken populations and their genetic distances to wild chicken populations.
resultsOur results show a strong inverse relationship, i.e. 88.6% of the variation in the overall genetic diversity of domesticated chicken populations was explained by their genetic distance to the wild populations. We also investigated whether the patterns of genetic diversity of different types of single nucleotide polymorphisms (SNPs) and genes are similar to that of the overall genome. Among the SNP classes, the non-synonymous SNPs deviated most from the overall genome. However, genetic distance to the wild chicken still explained more variation in domesticated chicken diversity across all SNP classes, which ranged from 83.0 to 89.3%.
conclusionsGenetic distance between domesticated chicken populations and their wild relatives can predict the genetic diversity of the domesticated populations. On the one hand, genes with little genetic variation across populations, regardless of the genetic distance to the wild population, are associated with major functions such as brain development. Changes in such genes may be detrimental to the species. On the other hand, genetic diversity seems to change at a faster rate within genes that are associated with e.g. protein transport and protein and lipid metabolic processes. In general, such genes may be flexible to changes according to the populations' needs. These results contribute to the knowledge of the evolutionary patterns of different functional genomic regions in the chicken.
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