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Title

Comparative expression analysis in mature gonads, liver and brain of turbot (Scophthalmus maximus) by cDNA-AFLPS

AuthorsTaboada, Xoana; Robledo, Diego; Palacio, Lorena del; Rodeiro, Antonio; Felip, Alicia ; Martínez, Paulino; Viñas, Ana M.
Issue Date2012
PublisherElsevier
CitationGene 492(1): 250-261 (2012)
AbstractTurbot is one of the most important farmed fish in Europe. This species exhibits a considerable sexual dimorphism in growth and sexual maturity that makes the all-female production recommended for turbot farming. Our knowledge about the genetic basis of sex determination and the molecular regulation of gonad differentiation in this species is still limited. Our goal was to identify and compare gene expression and functions between testes and ovaries in adults in order to ascertain the relationship between the genes that could be involved in the gonad differentiation or related to the sex determination system. The identification of differentially expressed sex related genes is an initial step towards understanding the molecular mechanisms of gonad differentiation. For this, we carried out a transcriptome analysis based on cDNA-AFLP technique which allowed us to obtain an initial frame on sex-specific gene expression that will facilitate further analysis especially along the critical gonad differentiating period. With the aim of widening the study on sex-biased gene expression we reproduced the same experiments in two somatic tissues: liver and brain. We have selected the liver because it is the most analyzed one regarding sexual dimorphic gene expression and due to its importance in steroid hormones metabolism and the brain because the functional relationship between brain and gonad is documented. We found slight but important differences between sexes which deserve further investigation. © 2011 Elsevier B.V.
URIhttp://hdl.handle.net/10261/52765
DOI10.1016/j.gene.2011.10.020
Identifiersdoi: 10.1016/j.gene.2011.10.020
issn: 0378-1119
e-issn: 1879-0038
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