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Gene expression profiling of the hyperplastic growth zones of the late trout embryo myotome using laser capture microdissection and microarray analysis

Pierre-Yves Rescan 1 Jérôme Montfort 1 Alain Fautrel 2 Cécile Ralliere 1 Véronique Lebret 1
2 H2P2 - H2P2 - Histo Pathologie Hight Precision
Biosit : Biologie - Santé - Innovation Technologique - Structure Fédérative de Recherche en Biologie et Santé de Rennes , UR1 - Université de Rennes 1
Abstract : A unique feature of fish is that new muscle fibres continue to be produced throughout much of the life cycle; a process termed muscle hyperplasia. In trout, this process begins in the late embryo stage and occurs in both a discrete, continuous layer at the surface of the primary myotome (stratified hyperplasia) and between existing muscle fibres throughout the myotome (mosaic hyperplasia). In post-larval stages, muscle hyperplasia is only of the mosaic type and persists until 40% of the maximum body length is reached. To characterise the genetic basis of myotube neoformation in trout, we combined laser capture microdissection and microarray analysis to compare the transcriptome of hyperplastic regions of the late embryo myotome with that of adult myotomal muscle, which displays only limited hyperplasia.
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Pierre-Yves Rescan, Jérôme Montfort, Alain Fautrel, Cécile Ralliere, Véronique Lebret. Gene expression profiling of the hyperplastic growth zones of the late trout embryo myotome using laser capture microdissection and microarray analysis. BMC Genomics, BioMed Central, 2013, 14:173, pp.1-11. ⟨10.1186/1471-2164-14-173⟩. ⟨hal-01205062⟩

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