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

Revista Brasileira de Zootecnia

Paiva, Samuel Rezende¹  Guimarães, Simone Eliza Facioni²  Lopes, Paulo Sávio²  Peixoto, Jane de Oliveira²  Faria, Danielle Assis de²  Silva, Priscila Vendramini² 

[1] Embrapa Recursos Genéticos e Biotecnologia, Brasília, Brasil;Universidade Federal de Viçosa, Viçosa, Brasil

关键词: divergent cross;    microsatellite marker;    quantitative traits;    sex × genotype interaction;    swine RESUMO Investigou-se neste trabalho a associação entre o marcador microssatélite IGF-I em uma população F2 (N=459) gerada pelo acasalamento entre suínos nativos brasileiros e fêmeas comerciais com características de desempenho;    cortes de carcaça e qualidade da carne;   

DOI  :  10.1590/S1516-35982009000200007

学科分类：兽医学

来源: Universidade Federal de Vicosa

【 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】

CC BY-NC