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Authordc.contributor.authorRobledo, Diego 
Authordc.contributor.authorGutiérrez, Alejandro P. 
Authordc.contributor.authorBarría, Agustín 
Authordc.contributor.authorYáñez López, José 
Authordc.contributor.authorHouston, Ross D. 
Cita de ítemdc.identifier.citationFront. Genet. 9:287 Aug 2018es_ES
Abstractdc.description.abstractSea lice are parasitic copepods that cause large economic losses to salmon aquaculture worldwide. Frequent chemotherapeutic treatments are typically required to control this parasite, and alternative measures such as breeding for improved host resistance are desirable. Insight into the host-parasite interaction and mechanisms of host resistance can lead to improvements in selective breeding, and potentially novel treatment targets. In this study, RNA sequencing was used to study the skin transcriptome of Atlantic salmon (Salmo salar) parasitized with sea lice (Cahgus rogercresseyi). The overall aims were to compare the transcriptomic profile of skin at louse attachment sites and "healthy" skin, and to assess differences in gene expression response between animals with varying levels of resistance to the parasite. Atlantic salmon pre-smolts were challenged with C. rogercresseyi, growth and lice count measurements were taken for each fish. 21 animals were selected and RNA Seq was performed on skin from a louse attachment site, and skin distal to attachment sites for each animal. These animals were classified into family-balanced groups according to the traits of resistance (high vs. low lice count), and growth during infestation. Overall comparison of skin from louse attachment sites vs. healthy skin showed that 4,355 genes were differentially expressed, indicating local up-regulation of several immune pathways and activation of tissue repair mechanisms. Comparison between resistant and susceptible animals highlighted expression differences in several immune response and pattern recognition genes, and also myogenic and iron availability factors. Components of the pathways involved in differential response to sea lice may be targets for studies aimed at improved or novel treatment strategies, or to prioritize candidate functional polymorphisms to enhance genomic selection for host resistance in commercial salmon breeding programs.es_ES
Patrocinadordc.description.sponsorshipRCUK-CONICYT BB/N024044/1 NERC R8/H10/56 MRC MR/K001744/1 BBSRC BB/J004243/1 Royal Society NF160037 BBS/E/D/20002172 BBS/E/D/30002275 BBS/E/D/10002070es_ES
Type of licensedc.rightsAttribution-NonCommercial-NoDerivs 3.0 Chile*
Link to Licensedc.rights.uri*
Sourcedc.sourceFrontiers in Geneticses_ES
Keywordsdc.subjectCaligus rogercresseyies_ES
Keywordsdc.subjectSalmo salares_ES
Keywordsdc.subjectDifferential expressiones_ES
Títulodc.titleGene expression response to sea lice in atlantic salmon Skin: RNA sequencing comparison between resistant and susceptible animalses_ES
Document typedc.typeArtículo de revistaes_ES
Indexationuchile.indexArtículo de publicación ISIes_ES
Indexationuchile.indexArtículo de publicación SCOPUS

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Attribution-NonCommercial-NoDerivs 3.0 Chile
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Chile