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2025年8月5日 星期二
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五指山猪近交家系Ⅰ系F19~F21群体微卫星位点等位基因遗传变化
程文科1,阮楠2,牟玉莲2,李奎 3,冯书堂2
1. 中国农业科学院北京畜牧兽医研究所;海南省畜牧技术推广站
2. 中国农业科学院畜牧研究
3. 中国农业科学院北京畜牧兽医研究所
Genetic Regulation of F19~F21 Microsatellite Loci Alleles of Inbred Line Ⅰ of Wuzhishan Mini-pig(Sus scrofa)
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摘要 探索五指山猪近交系Ⅰ系F19~F21 等位基因的遗传学规律。本研究以五指山小型猪(Sus scrofa)近交系Ⅰ系53个个体为研究对象,利用14对多态性微卫星位点,通过估算其基因杂合度(H)、多态信息含量(PIC)和等位基因数(N)等参数,检测近交系Ⅰ系微卫星纯合度及等位基因遗传变化。具有多态性的14个微卫星基因座上共检测到28个等位基因,其中F19、F20和F21群体检测分别到28、26和24个等位基因,平均每个位点分别仅有2.00、1.86和1.70个等位基因;3个世代总群体平均PIC为0.24,H为0.31,均低于F18代;其中有5个基因座在第19代已经达到完全纯合。Sw1377在第21代也全部纯合。但少数基因一直表现出高度杂合状态,如Sw902、S0036和Sw874。推测这些基因可能与五指山小型猪维持其某种性状相关。本研究结果为大型动物近交系培育提供了依据
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程文科
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李奎
冯书堂
关键词 微卫星近交系杂合度(H)多态信息含量(PIC)    
Abstract:To investigate the pattern of genetic variation of inbred line Ⅰ of Wuzhishan mini-pig(WZSP)(Sus scrofa) from the 19th to the 21th generations, fifty-three individuals of the inbred line Ⅰand 14 microsatellite loci were used to estimate their genetic heterozygosity(H), polymorphic information content (PIC) and number alleles(N). The results showed that there were a total of 28 alleles at the 14 loci, and the number of allele on F19, F20 and F21 groups were 28, 26 and 24, respectively; average loci alleles were 2.00, 1.86 and 1.70, respectively. In addition,the average PIC and H were 0.24 and 0.31, respectively, which were lower than that of F18 generation; among them, five loci had reached the fully homozygous at the 19th generation as well as did Sw1377 at the 21th generation. But there were a few loci high heterozygosity(H), such as Sw902, S0036 and Sw874. It was speculated that these genes may be related to maintain its a trait in the WZSP. The results of this study are used to provide the basis on inbred line nurture in large animal
Key wordsMicrosatellite    Inbred line    Heterozygosity(H)    Polymorphism information content(PIC)
收稿日期: 2012-04-13     
通讯作者: 冯书堂   
引用本文:   
程文科1,阮楠2,牟玉莲2,李奎 3,冯书堂2. 五指山猪近交家系Ⅰ系F19~F21群体微卫星位点等位基因遗传变化[J]. , 2012, 20(8): 867-873.
链接本文:  
http://journal05.magtech.org.cn/Jwk_ny/CN/     或     http://journal05.magtech.org.cn/Jwk_ny/CN/Y2012/V20/I8/867
 
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