ArticleBMC biology2020
The wild species genome ancestry of domestic chickens.
Article in BMC biology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.
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Who cites it
52 citing papers in PubMed, 179 citations in OpenAlex.
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- Harnessing Deep Learning in Searching Wild Relatives of Domestic Animals.Molecular ecology resources · 2026Article
- Increased Genetic Load in Breed Chickens and Reduced Coding Content in Long ROH.Genome biology and evolution · 2026Article
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- Explaining Global Turkey Biometric Diversity Through Principal Component Analysis.Animals : an open access journal from MDPI · 2025Article
- Endogenous retrovirus loci and induced changes in gene expression in Japanese indigenous chickens.Scientific reports · 2025Article
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- Population genomic analysis identifies the complex structural variation at the fibromelanosis (FM) locus in chicken.Scientific reports · 2025Article
- Developments in welfare of parent stock and commercial broilers.Poultry science · 2025Review
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- Refinement of Poultry Standing in Japan Based on Recent Anthropo-ornithological Perspectives.The journal of poultry science · 2025Review
- Prevalence of gastrointestinal parasites in chickens (Open veterinary journal · 2024Article
- Deep Ancestral Introgressions between Ovine Species Shape Sheep Genomes via Argali-Mediated Gene Flow.Molecular biology and evolution · 2024Article
- Utilizing Flaxseed as an Antimicrobial Alternative in Chickens: Integrative Review forCurrent issues in molecular biology · 2024Review
- Exploring Evolutionary Adaptations and Genomic Advancements to Improve Heat Tolerance in Chickens.Animals : an open access journal from MDPI · 2024Review
- Transcriptional Signatures of Domestication Revealed through Meta-Analysis of Pig, Chicken, Wild Boar, and Red Junglefowl Gene Expression Data.Animals : an open access journal from MDPI · 2024Article
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Authors and funding
14 authors at 8 institutions in 8 countries.
Funding
Abstract
backgroundHybridisation and introgression play key roles in the evolutionary history of animal species. They are commonly observed within several orders in wild birds. The domestic chicken Gallus gallus domesticus is the most common livestock species. More than 65 billion chickens are raised annually to produce meat and 80 million metric tons of egg for global human consumption by the commercial sector. Unravelling the origin of its genetic diversity has major application for sustainable breeding improvement programmes.
resultsIn this study, we report genome-wide analyses for signatures of introgression between indigenous domestic village chicken and the four wild Gallus species. We first assess the genome-wide phylogeny and divergence time across the genus Gallus. Genome-wide sequence divergence analysis supports a sister relationship between the Grey junglefowl G. sonneratii and Ceylon junglefowl G. lafayettii. Both species form a clade that is sister to the Red junglefowl G. gallus, with the Green junglefowl G. varius the most ancient lineage within the genus. We reveal extensive bidirectional introgression between the Grey junglefowl and the domestic chicken and to a much lesser extent with the Ceylon junglefowl. We identify a single case of Green junglefowl introgression. These introgressed regions include genes with biological functions related to development and immune system.
conclusionsOur study shows that while the Red junglefowl is the main ancestral species, introgressive hybridisation episodes have impacted the genome and contributed to the diversity of the domestic chicken, although likely at different levels across its geographic range.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.