Title:	Parent-of-origin effects for the number of oocytes and embryos in Gir cattle.
Authors:	ROCHA, R. de F. B. GARCIA, A. O. SANTOS, M. G. dos OTTO, P. I. SILVA, M. V. G. B. MARTINS, M. F. MACHADO, M. A. PANETTO, J. C. do C. CALUS, M. P. L. VANDENPLAS, J. GUIMARÃES, S. E. F.
Affiliation:	RENATA DE FATIMA BRETANHA ROCHA, UNIVERSIDADE FEDERAL DE VIÇOSA; ARIELLY OLIVEIRA GARCIA, UNIVERSIDADE FEDERAL DE VIÇOSA; MATEUS GUIMARÃES DOS SANTOS, UNIVERSIDADE FEDERAL DE VIÇOSA; PAMELA ITAJARA OTTO, UNIVERSIDADE FEDERAL DE SANTA MARIA; MARCOS VINICIUS GUALBERTO B SILVA, CNPGL; MARTA FONSECA MARTINS, CNPGL; MARCO ANTONIO MACHADO, CNPGL; JOAO CLAUDIO DO CARMO PANETTO, CNPGL; MARIO P. L. CALUS, WAGENINGEN UNIVERSITY; JEREMIE VANDENPLAS, WAGENINGEN UNIVERSITY; SIMONE ELIZA FACIONI GUIMARÃES, UNIVERSIDADE FEDERAL DE VIÇOSA.
Date Issued:	2024
Citation:	Livestock Science, v. 280, 105412, 2024.
Description:	Imprinting is a phenomenon that alters the expression of genes according to the parental origin of their alleles. A quantitative form to evaluate the imprinting effect is known as parent-of-origin effect. Our aim with this work is to identify parent-of-origin effects that influence the number of oocytes and embryos in Gir dairy cattle. A dataset with 17,526 Ovum Pick Up observations from 1641 Gir donors was used to estimate parent-of-origin effects for the traits number of total oocytes (TO), number of viable oocytes (VO) and number of embryos (EM). To identify parent-of-origin effects, dam and sire gametic effects were included, individually or together, in an animal model for TO, VO and EM traits. For TO, inclusion of paternal origin effects in the model was significant (P < 0.05), and explained 6 % of the total phenotypic variance. For VO and EM no significant parent-of-origin effects were found for either parental line. In conclusion, paternal effects appear to influence the total oocyte production in the Gir cattle breed.
Thesagro:	Gado Leiteiro
NAL Thesaurus:	Dairy cattle Paternal effect Reproductive traits
Keywords:	Gametic matrix Matriz gamética Efeito paterno Características reprodutivas
DOI:	https://doi.org/10.1016/j.livsci.2024.105412
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CNPGL)