Domestic chicken diversity: Origin, distribution, and adaptation

Chicken is the most numerous among domesticated livestock species. Across cultures, religions, and societies, chicken widely accepted with little or no taboo compared to other domestic animals. Its adaptability diverse environmental conditions demonstrated potential for breeding improvement provide a unique genetic resource addressing challenges of food security in world impacted by climatic change human population growth. Recent studies, shedding new knowledge on genomes, have helped reconstruct its past evolutionary history. Here, we review literature concerning origin, dispersion, adaptation chicken. We highlight role natural selection shaping diversity species few examples gaps that may be focus future research.