dc.contributor.author | Cánovas, Angela | |
dc.contributor.author | Pena, Romi | |
dc.contributor.author | Gallardo, David | |
dc.contributor.author | Ramırez, Oscar | |
dc.contributor.author | Amills, Marcel | |
dc.contributor.author | Quintanilla, Raquel | |
dc.contributor.other | Producció Animal | ca |
dc.date.accessioned | 2024-04-05T13:34:14Z | |
dc.date.available | 2024-04-05T13:34:14Z | |
dc.date.issued | 2012-04-24 | |
dc.identifier.citation | Cánovas, Ángela, Ramona N. Pena, David Gallardo, Óscar Ramírez, Marcel Amills, and Raquel Quintanilla. 2012. “Segregation of Regulatory Polymorphisms With Effects on the Gluteus Medius Transcriptome in a Purebred Pig Population.” PLOS ONE 7 (4): e35583. doi:10.1371/journal.pone.0035583. | ca |
dc.identifier.issn | 1932-6203 | ca |
dc.identifier.uri | http://hdl.handle.net/20.500.12327/2910 | |
dc.description.abstract | Background: The main goal of the present study was to analyse the genetic architecture of mRNA expression in muscle, a
tissue with an outmost economic importance for pig breeders. Previous studies have used F2 crosses to detect porcine
expression QTL (eQTL), so they contributed with data that mostly represents the between-breed component of eQTL
variation. Herewith, we have analysed eQTL segregation in an outbred Duroc population using two groups of animals with
divergent fatness profiles. This approach is particularly suitable to analyse the within-breed component of eQTL variation,
with a special emphasis on loci involved in lipid metabolism.
Methodology/Principal Findings: GeneChip Porcine Genome arrays (Affymetrix) were used to determine the mRNA
expression levels of gluteus medius samples from 105 Duroc barrows. A whole-genome eQTL scan was carried out with a
panel of 116 microsatellites. Results allowed us to detect 613 genome-wide significant eQTL unevenly distributed across the
pig genome. A clear predominance of trans- over cis-eQTL, was observed. Moreover, 11 trans-regulatory hotspots affecting
the expression levels of four to 16 genes were identified. A Gene Ontology study showed that regulatory polymorphisms
affected the expression of muscle development and lipid metabolism genes. A number of positional concordances between
eQTL and lipid trait QTL were also found, whereas limited evidence of a linear relationship between muscle fat deposition
and mRNA levels of eQTL regulated genes was obtained.
Conclusions/Significance: Our data provide substantial evidence that there is a remarkable amount of within-breed genetic
variation affecting muscle mRNA expression. Most of this variation acts in trans and influences biological processes related
with muscle development, lipid deposition and energy balance. The identification of the underlying causal mutations and
the ascertainment of their effects on phenotypes would allow gaining a fundamental perspective about how complex traits
are built at the molecular level. | ca |
dc.description.sponsorship | This project has been funded by the Spanish Ministry of Science (projects GEN2003-20658-C05-05, AGL2007-66707-C02-01 and AGL2010-22208-C02- 01). AC received a predoctoral scholarship from INIA (Instituto Nacional de Investigacio ´ n y Tecnologı ´a Agraria y Alimentaria). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. | ca |
dc.format.extent | 12 | ca |
dc.language.iso | eng | ca |
dc.publisher | Public Library of Science | ca |
dc.relation.ispartof | PLoS ONE | ca |
dc.rights | Attribution 4.0 International | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | * |
dc.title | Segregation of Regulatory Polymorphisms with Effects on the Gluteus Medius Transcriptome in a Purebred Pig Population | ca |
dc.type | info:eu-repo/semantics/article | ca |
dc.description.version | info:eu-repo/semantics/publishedVersion | ca |
dc.rights.accessLevel | info:eu-repo/semantics/openAccess | |
dc.embargo.terms | cap | ca |
dc.relation.projectID | MICYT//GEN2003-20658-C05-05/ES/Análisis genómico mediante microarrays de la arquitectura genética de fenotipos complejos en porcino/ | ca |
dc.relation.projectID | MEC/ /AGL2007-66707-C02-01/ES/Mapeo e identificación de genes implicados en el metabolismo lipídico en porcino, la calidad de la carne y la calidad del jamón curado/ | ca |
dc.relation.projectID | MICINN/Programa Nacional de Proyectos de Investigación Fundamental/AGL2010-22208-C02-01/ES/Utilización de aceites ácidos esterificados en la alimentación de animales monogástricos. Nutrición comparada y repercusiones sobre la calidad lipídica de la carne/ESTERIFATS | ca |
dc.subject.udc | 575 | ca |
dc.subject.udc | 636 | ca |
dc.identifier.doi | https://doi.org/10.1371/journal.pone.0035583 | ca |
dc.contributor.group | Genètica i Millora Animal | ca |