Association between insulin-like growth factor I (IGF-I) microsatellite polymorphisms and important economic traits in pigs

Revista Brasileira de Zootecnia

Danielle Assis De Faria²  Jane De Oliveira Peixoto²  Paulo Sávio Lopes²  Samuel Rezende Paiva¹  Priscila Vendramini Silva²  Simone Eliza Facioni Guimarães² 

[1] ,Universidade Federal de Viçosa Departamento de Zootecnia Viçosa MG ,Brasil

关键词: divergent cross;    microsatellite marker;    quantitative traits;    sex × genotype interaction;    swine;    características quantitativas;    cruzamentos divergentes;    interação sexo e genótipo;    marcadores microssatélites;    suínos;   

DOI  :  10.1590/S1516-35982009000200007

来源: SciELO

【 摘 要 】

This study investigated the association between IGF-I microsatellite marker in an F2 population (N=459) generated by mating of native boars to Brazilian commercial sows with performance, carcass cut, and meat quality traits. Association analyses were carried out using a statistical model that included genotype, sex, and group as fixed effects and sire as random effect. The IGF-I genotypes were significantly associated with different quantitative traits and these results corroborate with previous QTL analyses obtained for this chromosome region in swine. Additive and dominance effects, as well as a genotype-sex interaction, were estimated and discussed in the text. According to the results obtained, this marker is suitable for QTL search in the genotyped population.

【 授权许可】

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