ArticlePoultry science2023
High-density single nucleotide polymorphism markers reveal the population structure of 2 local chicken genetic resources.
Article in Poultry science, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 10 citations in OpenAlex.
- Integrated Analysis of SNPs and Structural Variations via High-depth Whole-genome Sequencing Reveals the Genetic Architecture and Optimizes Genomic Prediction in Chickens.Poultry science · 2026Article
- Development and application of a 5K targeted liquid SNP panel for Hetian chickens based on genotyping by targeted sequencing.Poultry science · 2026Article
- Genome-wide DAPC-based genetic structure, linkage disequilibrium, and effective population size in indigenous buffaloes of Northeastern and Central India.Mammalian genome : official journal of the International Mammalian Genome Society · 2026Article
- Genome-Wide Association Studies of Key Traits inGenes · 2025Article
- Egg Quality and Nutritional Profile of Three Sicilian Autochthonous Chicken Breeds: Siciliana, Cornuta di Caltanissetta, and Valplatani.Foods (Basel, Switzerland) · 2025Article
- Development and Application of a 40 K Liquid Capture Chip for Beef Cattle.Animals : an open access journal from MDPI · 2025Article
- Development and validation of a 5K low-density SNP chip for Hainan cattle.BMC genomics · 2024Article
- Genomic Inbreeding and Runs of Homozygosity Analysis of Cashmere Goat.Animals : an open access journal from MDPI · 2024Article
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Authors and funding
13 authors at 5 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Italy counts a large number of local chicken populations, some without a recognized genetic structure, such as Val Platani (VPL) and Cornuta (COS), which represent noteworthy local genetic resources. In this study, the genotype data of 34 COS and 42 VPL, obtained with the Affymetrix Axiom600KChicken Genotyping Array, were used with the aim to investigate the genetic diversity, the runs of homozygosity (ROH) pattern, as well as the population structure and relationship within the framework of other local Italian and commercial chickens. The genetic diversity indices, estimated using different approaches, displayed moderate levels of genetic diversity in both populations. The identified ROH hotspots harbored genes related to immune response and adaptation to local hot temperatures. The results on genetic relationship and population structure reported a clear clustering of the populations according to their geographic origin. The COS formed a nonoverlapping genomic cluster and clearly separated from the other populations, but showed evident proximity to the Siciliana breed (SIC). The VPL highlighted intermediate relationships between the COS-SIC group and the rest of the sample, but closer to the other Italian local chickens. Moreover, VPL showed a complex genomic structure, highlighting the presence of 2 subpopulations that match with the different source of the samples. The results obtained from the survey on genetic differentiation underline the hypothesis that Cornuta is a population with a defined genetic structure. The substructure that characterizes the Val Platani chicken is probably the consequence of the combined effects of genetic drift, small population size, reproductive isolation, and inbreeding. These findings contribute to the understanding of genetic diversity and population structure, and represent a starting point for designing programs to monitor and safeguard these local genetic resources, in order to define a possible official recognition program as breeds.
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