广西巴马小型猪近交群体的遗传结构分析  

Genetic Structure Analysis of Inbreeding Line in Guangxi Bama Miniature Pig

作　　者：黄建芳[1] 李小楷 蒋钦杨[1] 郭亚芬[1] 兰干球[1] 

机构地区：[1]广西大学动物科学技术学院,南宁530004

出　　处：《中国畜牧兽医》2015年第2期426-431,共6页China Animal Husbandry & Veterinary Medicine

基　　金：广西科技基础条件平台建设项目(10-108-24);国家现代农业产业技术体系广西生猪产业创新团队项目

摘　　要：本研究以33头广西巴马小型猪为研究对象，利用19个微卫星标记，通过估算其等位基因数（N）、多态信息含量（PIC）和近交系数（F）等参数，对广西巴马小型猪近交群F10～F15世代进行了遗传学检测。试验结果显示，19个微卫星座位上共检测到31个等位基因，其中F10F15分别具有27、29、28、27、26和25个等位基因，平均每个位点分别仅有1．42、1．53、1．47、1．42、1．37和1．32个等位基因；6个世代群体平均多态信息含量为0．1044。广西巴马小型猪F10～F15世代的平均近交系数分别为0．8070、0．8263、0．8491、0．8710、0．8904、0．9118。结果表明，广西巴马小型猪近交群体的基因多态性低、近交程度高，是一个遗传性稳定的群体。To investigate the genetic structure of inbred line of Guangxi Bama miniature pig from the 10^th to the 15^th generations, 33 individuals of the inbred line and 19 microsatellite loci were used to estimate their number alleles （N）, polymorphie information content （PIC） and inbreeding coefficients （F）. The results showed that there were a total of 31 alleles at the 19 loci,and the number of allele on F10 ,F11 ,F12 ,F13 ,F14 and F15 groups were 27,29,28,27,26 and 25 ,respec- tively;Average loci alleles were 1.42,1.53,1.47,1.42,1.37 and 1.32, respectively; The average inbreeding coefficients of animals from the 10^th to the 15^th generations were 0. 8070,0. 8263, 0. 8491,0. 8710,0. 8904 and 0. 9118, respectively. In addition,the average PIC was 0. 1044. The results indicated that the inbred line of Guangxi Bama miniature pig had low gene polymorphism and high inbreeding coefficients and it was concluded that this inbreeding line had already become a genetically stable animal herd.

关 键 词：广西巴马小型猪 微卫星 多态信息含量(PIC) 近交系 

分 类 号：S813[农业科学—畜牧学]