Jiangxi builds the most complete genome database of local pig resources in China

Introduction: Recently, the last pig resource sampling team of Jiangxi Agricultural University returned to Nanchang from Hunan Province, marking the completion of the most complete genome DNA database of local pig resource in China It is understood that the gene collection and gene bank construction work was undertaken by the Key Laboratory of animal biotechnology of Jiangxi Agricultural University, which lasted for 6 years Researchers have traveled all over the country in 24 provinces, cities and autonomous regions They have collected blood and tissue samples of 70 local pig breeds (groups) and more than 4000 pig individuals, and extracted and preserved 12000 DNA samples Some of the pig resources were discovered for the first time, which enriched people's understanding of pig resources in China China has a long history of domesticated pig breeding, which is the most abundant country in the world Many local pig breeds are unique excellent gene resources But in the past two decades, with the development of pig industry tends to scale, some pig resources with local characteristics have been ignored and eliminated, and the loss of China's original pig species is more and more serious This systematic collection work of Jiangxi Agricultural University not only preserved complete genomic DNA for pig resources in China, but also laid a material foundation for protecting and utilizing gene resources, identifying, separating and cloning new genes, and applying for "gene patent" in China Relevant animal husbandry experts also believe that the establishment of genomic DNA library of local pig resources in China has prepared technical resources for China's animal husbandry to meet the challenge of WTO accession, and will further enhance the competitiveness of China's livestock and poultry products in the international market According to the person in charge of the Key Laboratory of animal biotechnology of Jiangxi Agricultural University, the establishment of the genomic DNA database of local pig resources is the basis of the research project of "main gene location of important economic characters of agricultural animals" undertaken by the school, which is the preliminary work of the National Key Basic research and development plan "973" project At present, Jiangxi Agricultural University is actively engaged in the study of candidate genes for important economic traits in DNA library.