畜牧与兽医2024，Vol.56Issue(9)：23-27,5.
内江猪的遗传结构分析
Analysis of genetic structure in Neijiang pigs
摘要
Abstract
This study was to investigate the genetic relationships and genetic structure in the Neijiang pig population.Single nucleotide pol-ymorphism(SNP)was detected in 30 Neijiang pigs using the SNP bead chip.The GCTA software was used to construct a G matrix,and the PLINK software was employed to construct an identity by state(IBS)distance matrix,in order to analyze the genetic relationships of the Nei-jiang pig population.The Mega X software was used to construct a population evolution tree and the genetic structure of the Neijiang pig popu-lation was analyzed.The results showed that a total of 57 466 SNPs loci were detected,and 29 468 SNPs loci passed quality control.The ex-perimental Neijiang pig population had a moderate degree of kinship.The population evolution tree divided Neijiang pigs and boars into 6 blood lineages,with the same number as recorded in traditional genealogies.The average inbreeding coefficiency based on ROH was 0.243.In summary,Neijiang pigs had relatively a little blood relationship,low genetic diversity and some degree of inbreeding.Therefore,it is nec-essary to introduce new blood tie to improve the genetic diversity of the population and the population quality.关键词
内江猪/SNP芯片/遗传结构Key words
Neijiang pig/SNP chip/genetic structure分类
农业科技引用本文复制引用
杨雪梅,龚建军,吕学斌,陶璇,顾以韧,梁艳,雷云峰,杨跃奎,曾凯,王言,陈晓晖..内江猪的遗传结构分析[J].畜牧与兽医,2024,56(9):23-27,5.基金项目
国家重点研发计划项目(2021YFD1301101,2021YFD-1301104) （2021YFD1301101,2021YFD-1301104）
四川省重大科技专项(2021ZDZX0011,2021ZDZX0008) （2021ZDZX0011,2021ZDZX0008）
四川省重点研发项目(2022YFN0047,2023YFN0088,2023YFN0002) （2022YFN0047,2023YFN0088,2023YFN0002）
国家现代农业产业技术体系项目(CARS-35) （CARS-35）
现代农业产业技术体系四川创新团队项目(sccxtd-2024-08) （sccxtd-2024-08）
省财政运行专项(SASA2024CZYX001) （SASA2024CZYX001）
天府农业大师项目(Hezhiping-2022) （Hezhiping-2022）
