TY - JOUR
T1 - Parent-of-origin effects for the number of oocytes and embryos in Gir cattle
AU - de Fátima Bretanha Rocha, Renata
AU - Garcia, Arielly Oliveira
AU - Guimarães dos Santos, Mateus
AU - Otto, Pamela Itajara
AU - Vinícius Barbosa da Silva, Marcos
AU - Martins, Marta Fonseca
AU - Machado, Marco Antônio
AU - Claudio do Carmo Panetto, João
AU - Calus, Mario P.L.
AU - Vandenplas, Jeremie
AU - Guimarães, Simone Eliza Facioni
PY - 2024/2
Y1 - 2024/2
N2 - 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.
AB - 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.
KW - Dairy cattle
KW - Gametic matrix
KW - Paternal effect
KW - Reproductive traits
U2 - 10.1016/j.livsci.2024.105412
DO - 10.1016/j.livsci.2024.105412
M3 - Article
AN - SCOPUS:85184140645
SN - 1871-1413
VL - 280
JO - Livestock Science
JF - Livestock Science
M1 - 105412
ER -