4 documents found, page 1 of 1
Weighted single-step GWAS and gene network analysis reveal new candidate genes ...
Marques, Daniele B. D.; Bastiaansen, John W. M.; Broekhuijse, Marleen L. W. J.; Lopes, Marcos S.; Knol, Egbert F.; Harlizius, BarbaraIn recent years, there has been increased interest in the study of the molecular processes that affect semen traits. In this study, our aim was to identify quantitative trait loci (QTL) regions associated with four semen traits (motility, progressive motility, number of sperm cells per ejaculate and total morphological defects) in two commercial pig lines (L1: Large White type and L2: Landrace type). Since the ...
Quantitative trait loci for carcass, internal organ and meat quality traits on ...
Paixão, Débora M.; Silva Filho, Miguel I. da; Pereira, Mário S.; Lopes, Marcos S.; Barbosa, Leandro; Souza, Katiene Régia Silva; Lopes, Paulo S.The objective of this study was to map quantitative trait loci (QTL) on porcine chromosomes 16, 17 and 18 and to determine their association with carcass, organ and meat quality traits. An F2 population was produced by crossing two boars of the naturalized Brazilian Piau breed with 18 commercial females (Landrace x Large White x Pietrain). The population was genotyped for 11 microsatellite markers distributed o...
Gene networks for total number born in pigs across divergent environments
Verardo, Lucas L.; Lopes, Marcos S.; Mathur, Pramod; Madsen, Ole; Silva1, Fabyano F.; Groenen, Martien A. M.; Knol, Egbert F.; Lopes, Paulo S.For reproductive traits such as total number born (TNB), variance due to different environments is highly relevant in animal breeding. In this study, we aimed to perform a gene-network analysis for TNB in pigs across different environments using genomic reaction norm models. Thus, based on relevant single-nucleotide polymorphisms and linkage disequilibrium blocks across environments obtained from GWAS, differen...
Revealing new candidate genes for reproductive traits in pigs: combining Bayesi...
Verardo, Lucas L.; Silva, Fabyano F.; Lopes, Marcos S.; Madsen, Ole; Bastiaansen, John W. M.; Knol, Egbert F.; Kelly, Mathew; Varona, LuisReproductive traits such as number of stillborn piglets (SB) and number of teats (NT) have been evaluated in many genome-wide association studies (GWAS). Most of these GWAS were performed under the assumption that these traits were normally distributed. However, both SB and NT are discrete (e.g. count) variables. Therefore, it is necessary to test for better fit of other appropriate statistical models based on ...