Xinghao Li , Jia Xuan

Institute of Life Sciences, Jiyang Colloge of Zhejiang A&F University, Zhuji, 311800, Zhejiang, China
Author    Correspondence author
Genomics and Applied Biology, 2025, Vol. 16, No. 2   
Received: 27 Jan., 2025    Accepted: 04 Mar., 2025    Published: 19 Mar., 2025

This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

The origin, domestication process and genetic diversity of domesticated chickens have always been important contents in the study of animal genetics and the evolution of poultry. Based on the latest achievements in phylogenetic genomics in recent years, this study sorted out the multiple independent domestication processes of domesticated chickens, the gene exchange between wild junglefowl and domesticated chickens, and the paths by which they spread from their native habitats to the world, and explored the genetic reasons for domesticated chickens to adapt to different environments and form local breeds. This study also analyzed the relationship between the geographical distribution of domesticated chickens and human migration, and expounded some representative diffusion cases in the Pacific and African regions. This study aims to provide a theoretical basis for understanding the evolutionary history and genetic structure of domesticated chickens, and also to offer a scientific basis for the protection of local chicken breeds and future breeding strategies.

Domesticated chickens; Phylogenomics; Genomic introgression; Genetic diversity; Phylogeography