Distribution and linkage disequilibrium analysis of polymorphisms of MC4R, LEP, H-FABP genes in the different populations of pigs, associated with economic traits in DIV2 line
文献类型： 外文期刊
作者： Chao, Zhe 1 ; Wang, Feng 1 ; Deng, Chang-Yan 2 ; Wei, Li-Min 1 ; Sun, Rui-Ping 1 ; Liu, Hai-Long 1 ; Liu, Quan-Wei 1 ; Zh 1 ;
作者机构： 1.Hainan Acad Agr Sci, Inst Anim Sci & Vet, Haikou 571100, Hainan, Peoples R China
2.Huazhong Agr Univ, Key Lab Swine Genet & Breeding, Minist Agr, Wuhan 430070, Hubei, Peoples R China
3.Huazhong Agr Univ, Key Lab Agr Anim Genet,Breeding & Reprod, Minist Educ, Coll Anim Sci, Wuhan 430070, Hubei, Peoples R China
关键词： MC4R;LEP;H-FABP;Multiplex PCR;Linkage disequilibrium
期刊名称：MOLECULAR BIOLOGY REPORTS （ 影响因子：2.316； 五年影响因子：2.357 ）
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收录情况： SCI
摘要： PCR-RFLP was used to analyze the polymorphisms of MC4R, LEP, H-FABP genes in a swine breed composite (DIV2) and 4 swine breeds (Yorkshire, Landrace, Meishan, Bamei). The association study of these polymorphisms with several economic traits was carried out on a DIV2 population. The results obtained showed that MC4R/TaqI genotype had an effect for average backfat thickness (P < 0.05) and lean meat percentage (P < 0.05). At locus LEP/HinfI animals of AA genotype had lower test daily gain than that of BB (P < 0.01) or AB genotype (P < 0.05). At the H-FABP/HaeIII locus lean meat percentage of the individuals with genotype DD were higher than that with genotype dd (P < 0.05). Linkage disequilibrium analysis among MC4R, LEP and H-FABP revealed that these genes were independent. This represented two or more genes that could be combined together within one genotype in order to facilitate breeding for objective traits. In addition, a method allowing simultaneous detection of fragments of MC4R and LEP gene was developed.
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