Association of CSSM066 and ILSTS011 microsatellite markers and thyroglobulin gene SNP with backfat in Canchim cattle

Scientia Agricola

Gisele Batista Veneroni²  Sarah Laguna Meirelles¹  Henrique Nunes De Oliveira¹  Maurício Mello De Alencar¹  Gustavo Gasparin²  João José De Simoni Gouveia¹  Marcelo Cervini²  Luciana Correia De Almeida Regitano¹ 

[1] ,UFSCar Depto. de Genética e Evolução São Carlos SP ,Brasil

关键词: Canchim breed;    fat deposition;    molecular markers;    candidate gene;   

DOI  :  10.1590/S0103-90162012000100001

来源: SciELO

【 摘 要 】

Canchim, a synthetic breed of cattle derived from the Charolais and Zebu group has been used in the beef-cattle industry in Brazil as an alternative for intensifying production. One of the main concerns with this breed is its poor fat deposition and consequently, there is an effort to increase the performance for this trait. The thyroglobulin gene is located in a QTL region for fat deposition, and reports describe the influence of a polymorphism in the 5´ leader sequence of that gene on marbling and subcutaneous fat thickness. This study analyzed the association of this polymorphism in the thyroglobulin gene, as well as of two flanking microsatellite markers, CSSM066 and ILSTS011, with backfat thickness in 987 Canchim beef cattle. The CSSM066 and ILSTS011 microsatellite markers have a effect on fat thickness in the studied populations. However, this trait did not have association with the polymorphism of the thyroglobulin gene, which suggests that other genes of bovine chromosome 14 may be responsible for the variation in this trait.

【 授权许可】

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