Data/hora: 08/06/2024 09:36:57

Biblioteca(s): | Embrapa Agricultura Digital; Embrapa Pecuária Sudeste.
Data corrente: | 29/09/2016
Data da última atualização: | 28/03/2019
Autoria: | OLIVEIRA, P. P. A.; TIZIOTO, P. C.; MALAGO JUNIOR, W.; NASCIMENTO, M. L. do; CESAR, A. S. M.; DINIZ, W. J. da S.; SOUZA, M. M. de; LANNA, D. P. D.; TULLIO, R. R.; MOURAO, G. B.; MUDADU, M. de A.; COUTINHO, L. L.; REGITANO, L. C. de A.
Afiliação: | PATRICIA PERONDI ANCHAO OLIVEIRA, CPPSE; Polyana Cristine Tizioto, UFSCar; WILSON MALAGO JUNIOR, CPPSE; Michele Lopes do Nascimento, USP; Aline Silva Mello Cesar, USP; Wellison Jarles da Silva Diniz, UFSCar; Marcela Maria de Souza, UFSCar; Dante Pazzanese Duarte Lanna, USP; RYMER RAMIZ TULLIO, CPPSE; Gerson Barreto Mourão, USP; MAURICIO DE ALVARENGA MUDADU, CNPTIA; Luiz Lehmann Coutinho, USP; LUCIANA CORREIA DE ALMEIDA REGITANO, CPPSE.
Título: | A single nucleotide polymorphism in NEUROD1 is associated with production traits in nelore beef cattle.
Ano de publicação: | 2016
Fonte/Imprenta: | Genetics and Molecular Research, v. 15, n. 2, p. 1-8, 2016.
DOI: | 10.4238/gmr.15028161
Idioma: | Inglês
Conteúdo: | Feed efficiency and carcass characteristics are late-measured traits. The detection of molecular markers associated with them can help breeding programs to select animals early in life, and to predict breeding values with high accuracy. The objective of this study was to identify polymorphisms in the functional and positional candidate gene NEUROD1 (neurogenic differentiation 1), and investigate their associations with production traits in reference families of Nelore cattle. A total of 585 steers were used, from 34 sires chosen to represent the variability of this breed. By sequencing 14 animals with extreme residual feed intake (RFI) values, seven single nucleotide polymorphisms (SNPs) in NEUROD1 were identified. The investigation of marker effects on the target traits RFI, backfat thickness (BFT), ribeye area (REA), average body weight (ABW), and metabolic body weight (MBW) was performed with a mixed model using the restricted maximum likelihood method. SNP1062, which changes cytosine for guanine, had no significant association with RFI or REA. However, we found an additive effect on ABW (P &#8804; 0.05) and MBW (P &#8804; 0.05), with an estimated allele substitution effect of -1.59 and -0.93 kg0.75, respectively. A dominant effect of this SNP for BFT was also found (P &#8804; 0.010). Our results are the first that identify NEUROD1 as a candidate that affects BFT, ABW, and MBW. Once confirmed, the inclusion of this SNP in dense panels may improve the accuracy of genomic selection for these traits in Nelore beef cattle as this SNP is not currently represented on SNP chips.
Palavras-Chave: | Candidate gene; Feed efficiency; Nelore.
Thesagro: | Bos Indicus; Gado de corte; Gado Nelore.
Thesaurus Nal: | Body composition; Feed conversion; Zebu.

Categoria do assunto:

G Melhoramento Genético
X Pesquisa, Tecnologia e Engenharia

URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/147967/1/mudadu-gmr-2016.pdf
Registro original: | Embrapa Pecuária Sudeste (CPPSE)

Exemplares:

CPPSE - (23736-1) - UPC - AP - DD - PROCI-2016.00061 - OLI - 2016.00104 - DIS
CNPTIA - (18971-1) - UPC - AP - DD -  -  -  - DIS