贵州白香猪群体遗传结构的微卫星分析

›› 2011, Vol. 38 ›› Issue (7): 130-135.

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Analysis of Genetic Structure of Guizhou Baixiang Pig with Microsatellite Markers

WU Pei-lu, XU Hou-qiang, JI Xin-qin, ZHANG Yong, CHEN Xiang, WU Xuan, NIE Yu-li

Guizhou University Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education; Guizhou Key Laboratory of Animal Genetics, Breeding and Reproduction; Guizhou Talent Base of Animal Genetics, Breeding and Reproduction,Guiyang 550025,China

Received:2011-05-11 Revised:1900-01-01 Online:2011-07-20 Published:2011-07-20

Abstract

Abstract: 27 microsatellite markers were used to analyze the genetic structure of two Guizhou Baixiang pig strains of the the eleventh and twelfth generations which came from Xiang pig breeding station of Guizhou university. The results showed that the average number of effective allele, expected heterozygosity, polymorphism information content(PIC) and inbreeding coefficients of Guizhou Baixiang pig Ⅰ andⅡstrains of the eleventh generation were 1.9281, 1.8189;0.4582, 0.4221;0.3664, 0.3348 and 0.5418, 0.5779, respectively. These genetic parameters of Guizhou Baixiang pig Ⅰ and Ⅱ strains of the twelfth generation were 1.8289, 1.7100;0.4315, 0.3868;0.3430, 0.3063 and 0.5685, 0.6132, respectively. The results indicated that Guizhou Baixiang pig had low gene polymorphism and high inbreeding degree through the inbreeding breeding of multiple generations. Guizhou Baixiang pig had already become a stable genetic group.

Key words: Guizhou Baixiang pig; microsatellite; expected heterozygosity; polymorphism inform ation content; inbreeding coefficient

CLC Number:

S813.3

WU Pei-lu;XU Hou-qiang;JI Xin-qin;ZHANG Yong;CHEN Xiang;WU Xuan;NIE Yu-li. Analysis of Genetic Structure of Guizhou Baixiang Pig with Microsatellite Markers[J]. , 2011, 38(7): 130-135.

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Analysis of Genetic Structure of Guizhou Baixiang Pig with Microsatellite Markers

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