Data/hora: 16/06/2024 06:40:54

Biblioteca(s): | Embrapa Tabuleiros Costeiros.
Data corrente: | 19/02/2019
Data da última atualização: | 19/02/2019
Autoria: | MEIRA, A. N.; MORIEIRA, G. C. M.; COUTINHO, L. L.; MOURAO, G. B.; AZEVEDO, H. C.; MUNIZ, E. N.; MACHADO, A. L.; SOUSA JUNIOR, L. P.; PEDROSA, V. B.; PINTO, L. F. B.
Afiliação: | ARIANA NASCIMENTO MEIRA, UFBA; GABRIEL COSTA MONTEIRO MOREIRA, USP; LUIZ LEHMANN COUTINHO, USP; GERSON BARRETO MOURAO, USP; HYMERSON COSTA AZEVEDO, CPATC; EVANDRO NEVES MUNIZ, CPATC; ALESSANDRO LIMA MACHADO, UFBA; LUIS PAULO SOUSA JUNIOR, UFBA; VICTOR BRENO PEDROSA, UEPG; LUIZ FERNANDO BATISTA PINTO, UFBA.
Título: | Carcass and commercial cut yield of Santa Ines sheep affected by polymorphisms of the LEP gene.
Ano de publicação: | 2018
Fonte/Imprenta: | Small Ruminant Research, v. 166, p. 121-128, Sep. 2018.
ISSN: | 0921-4488
Idioma: | Português
Conteúdo: | Leptin plays an important role in the metabolism of various tissues, and, therefore, polymorphisms in its LEP gene may be associated with the variation of several phenotypic traits in sheep. This study aimed to identify polymorphisms in LEP from Santa Ines sheep as well as to test its association with carcass traits. A 2045-bp fragment was sequenced, in which 21 polymorphisms were identified. Of these, 9 polymorphisms were identified for the first time in sheep. The g.92501206C > T, g.92501372 G > A and g.92502987delA showed no Hardy?Weinberg equilibrium, while the minor allele frequency ranged from 0.01 (g.92502987delA) to 0.45 (g.92503044 A > G). The g.92501372 G > A influenced the neck weight and neck yield, and the difference between AA and GG were 1.93 kg (neck weight) and 1.47% (neck yield). The g.92501407C > T affected the hot and cold carcass weights, with 1.00 kg and 0.97 kg of differences between TT and CC, respectively. The g.92501543 A > G affected the hot and cold carcass yields, leg yield, and internal carcass length, with 3.17%, 3.03%, 3.12% and 1.83 cm of difference between GG and AA, respectively. Finally, the g.92503024 G > A showed an additive effect on the carcass finishing score, where the genotype AA had a higher score (0.32 points) than GG genotype. Haplotype analysis confirmed some of the effects noted in the single-locus analysis and revealed novel effects for carcass traits. Therefore, it can be concluded that some polymorphisms in the leptin gene can provide information for improvement of the carcass attributes of Santa Ines sheep.
Thesagro: | Ovino; Polimorfismo.
Thesaurus Nal: | Ovine carcasses.
Categoria do assunto: | --
Registro original: | Embrapa Tabuleiros Costeiros (CPATC)
Exemplares: | CPATC - (25428-1) - UPC - AP - DD -  -  -  - DIS