Influence of Temperature on the Ontogenetic Expression of Neural Development-Related Genes from Developing Tilapia Brain Expressed Sequence Tags
Authors:
- 24 January 2007
- journal article
- Published by Springer Nature in Marine Biotechnology
- Vol. 9 (2) , 243-261
Abstract
The developing central neural circuits in teleosts are genetically controlled and temperature-initiated. We compiled a list of transcripts expressed in the developing tilapia (Oreochromis mossambicus) brain using expressed sequence tags derived from the developing brain, and investigated genes with thermosensitive ontogenetic expression. Of 1084 clones, 893 were unique genes, 445 of which were known. Fourteen of the latter were neural development-related, and the ontogenetic expression of nine was temperature-influenced. Discs large homolog 5, myelin expression factor 2, plasticity-related protein-2, tsc2 gene product-related genes, and an inhibitor of differentiation protein 2 (Id2) were differentially temperature-influenced according to their developmental stages. Endothelial differentiation-related factor 1, midkine-related growth factor b, and mitogen-activated protein kinase 14b were specifically influenced by elevated temperature, and beta-catenin-like isoform 1 by lower temperature. Neural development-related genes, particularly those with thermosensitive ontogenetic expression, might be important for developing central neural circuits in teleosts.Keywords
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