| There are many species of local chicken breeds in China. To study the genetic diversity of local chicken breeds, it will not only strengthen the protection of biodiversity, but also have important significance to the origin, evolution, classification, identification and genetic breeding. With the rapid development of molecular biology techniques for genetic diversity, it provided more direct and accurate method, detecting animal genetic diversity by analysing DNA sequence directly. DNA analysis methods has become the most effective method of genetic analysis, avoiding the error generated by phenotypic resistance. Genetic diversity studies on the morphological level,cellular level, protein level and DNA levels of local chicken breeds in China were reviewed to provide reference and basis for quality cultivation of local chicken breeds and breeding work. |
