ArticleGenetics, selection, evolution : GSE2022
Managing genetic diversity in breeding programs of small populations: the case of French local chicken breeds.
Article in Genetics, selection, evolution : GSE, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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Who cites it
19 citing papers in PubMed.
- Crossbreeding a Mediterranean Local Chicken Breed with a Medium-Growing Commercial Hybrid as a Complementary Strategy for Conservation and Productive Valorization: Growth Performance, Carcass Traits, and Meat Quality.Animals : an open access journal from MDPI · 2026Article
- Genetic structure and selection signatures of Beijing-You chicken populations provide insight into breed conservation.Poultry science · 2026Article
- Genomic diversity, population structure and runs of homozygosity in Spanish native chicken breeds assessed with high-density SNP data.Poultry science · 2026Article
- Aging, inflammation, and oxidative stress converge on semen quality in Oravka roosters.Poultry science · 2026Article
- Association analysis and in silico functional predictions of RMDN2 variants in chickens.Animal bioscience · 2026Article
- Selection Signatures and Genetic Divergence in Hotan Black and F2 Yeonsan Ogye Chickens.Animals : an open access journal from MDPI · 2026Article
- Conservation of Native Livestock Breeds in Russia: Current State and Promising Prospects.Animals : an open access journal from MDPI · 2025Review
- Comparison of unique Dong Tao chickens from Vietnam and Thailand: genetic background and differences for resource management.Genes & genomics · 2025Article
- Genetic Diversity and Conservation Priority of Korean Chicken Breeds Using Single-Nucleotide Polymorphism Markers.Animals : an open access journal from MDPI · 2025Article
- Genomic scans for selection and runs of homozygosity in southern Italian turkey populations.Poultry science · 2025Article
- rPIMS: a ShinyR package for the precision identification and modelling of livestock breeds using genomic data and machine learning approaches.Bioinformatics advances · 2025Article
- Exploring Evolutionary Adaptations and Genomic Advancements to Improve Heat Tolerance in Chickens.Animals : an open access journal from MDPI · 2024Review
- Analysis of Endangered Andalusian Black Cattle (Negra Andaluza) Reveals Genetic Reservoir for Bovine Black Trunk.Animals : an open access journal from MDPI · 2024Article
- Genomic insights into local adaptation and phenotypic diversity of Wenchang chickens.Poultry science · 2024Article
- Runs of Homozygosity Detection and Selection Signature Analysis for Local Goat Breeds in Yunnan, China.Genes · 2024Article
- Managing genomic diversity in conservation programs of Chinese domestic chickens.Genetics, selection, evolution : GSE · 2023Article
- Assessment of the inclusion of a feed additive of sodium humate derived from freshwater sapropel in diets for broiler chickens.Veterinary world · 2023Article
- A gene bank's collection of genetic diversity among minor chicken breeds.Poultry science · 2023Article
- Welfare of ducks, geese and quail on farm.EFSA journal. European Food Safety Authority · 2023Article
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10 authors.
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Abstract
backgroundOn-going climate change will drastically modify agriculture in the future, with a need for more sustainable systems, in particular regarding animal production. In this context, genetic diversity is a key factor for adaptation to new conditions: local breeds likely harbor unique adaptive features and represent a key component of diversity to reach resilience. However, local breeds often suffer from small population sizes, which puts these valuable resources at risk of extinction. In chickens, population management programs were initiated a few decades ago in France, relying on a particular niche market that aims at promoting and protecting local breeds. We conducted a unique comprehensive study of 22 French local breeds, along with four commercial lines, to evaluate their genetic conservation status and the efficiency of the population management programs.
resultsUsing a 57K single nucleotide polymorphism (SNP) chip, we demonstrated that both the between- and within-breed genetic diversity levels are high in the French local chicken populations. Diversity is mainly structured according to the breeds' selection and history. Nevertheless, we observed a prominent sub-structuring of breeds according to farmers' practices in terms of exchange, leading to more or less isolated flocks. By analysing demographic parameters and molecular information, we showed that consistent management programs are efficient in conserving genetic diversity, since breeds that integrated such programs earlier had older inbreeding.
conclusionsManagement programs of French local chicken breeds have maintained their genetic diversity at a good level. We recommend that future programs sample as many individuals as possible, with emphasis on both males and females from the start, and focus on a quick and strong increase of population size while conserving as many families as possible. We also stress the usefulness of molecular tools to monitor small populations for which pedigrees are not always available. Finally, the breed appears to be an appropriate operational unit for the conservation of genetic diversity, even for local breeds, for which varieties, if present, could also be taken into account.
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