Data/hora: 20/06/2024 08:28:02

Biblioteca(s): | Embrapa Gado de Leite.
Data corrente: | 19/11/2013
Data da última atualização: | 05/02/2024
Autoria: | MOKRY, F. B.; HIGA, R. H.; MUDADU, M. de A.; LIMA, A. O. de; MEIRELLES, S. L. C.; SILVA, M. V. G. B.; CARDOSO, F. F.; NICIURA, S. C. M.; OLIVEIRA, M. M. de; URBINATI, I.; TULLIO, R. R.; ALENCAR, M. M. de; REGITANO, L. C. de A.
Afiliação: | FABIANA BARICHELLO MOKRY, UFSC; ROBERTO HIROSHI HIGA, CNPTIA; MAURICIO DE ALVARENGA MUDADU, CPPSE; ANDRESSA OLIVEIRA DE LIMA, UFSC; SARAH LAGUNA CONCEIÇÃO MEIRELLES, UFLA; MARCOS VINICIUS GUALBERTO B SILVA, CNPGL; FERNANDO FLORES CARDOSO, CPPSUL; SIMONE CRISTINA MEO NICIURA, CPPSE; MAURÍCIO MORGADO DE OLIVEIRA, EMBRAPA PECUÁRIA SUDESTE; ISMAEL URBINATI, USP; RYMER RAMIZ TULLIO, CPPSE; MAURICIO MELLO DE ALENCAR, CPPSE; LUCIANA CORREIA DE ALMEIDA REGITANO, CPPSE.
Título: | Genome-wide association study for backfat thickness in Canchim beef cattle using Random Forest approach.
Ano de publicação: | 2013
Fonte/Imprenta: | BMC Genetics, London, v. 14, article 47, 2013.
DOI: | https://doi.org/10.1186/1471-2156-14-47
Idioma: | Inglês
Conteúdo: | Background - Meat quality involves many traits, such as marbling, tenderness, juiciness, and backfat thickness, all of which require attention from livestock producers. Backfat thickness improvement by means of traditional selection techniques in Canchim beef cattle has been challenging due to its low heritability, and it is measured late in an animal’s life. Therefore, the implementation of new methodologies for identification of single nucleotide polymorphisms (SNPs) linked to backfat thickness are an important strategy for genetic improvement of carcass and meat quality. Results- The set of SNPs identified by the random forest approach explained as much as 50% of the deregressed estimated breeding value (dEBV) variance associated with backfat thickness, and a small set of 5 SNPs were able to explain 34% of the dEBV for backfat thickness. Several quantitative trait loci (QTL) for fat-related traits were found in the surrounding areas of the SNPs, as well as many genes with roles in lipid metabolism. Conclusions- These results provided a better understanding of the backfat deposition and regulation pathways, and can be considered a starting point for future implementation of a genomic selection program for backfat thickness in Canchim beef cattle.
Palavras-Chave: | Machine learning; Tropical composition cattle.
Thesagro: | Bovino.
Thesaurus Nal: | lipid metabolism; subcutaneous fat.
Categoria do assunto: | G Melhoramento Genético
Registro original: | Embrapa Gado de Leite (CNPGL)
Exemplares: | CNPGL - (20754-1) - UPC - AP - DD -  -  -  - DIS