Fig 5. Developmental and adult tissue expression profile of the putative novel protein coding genes identified in the ventricular chamber.

The heat maps represent spatiotemporal expression profile of 23 ventricle-restricted putative novel protein coding genes across 11 zebrafish developmental stages and 6 adult tissue types. The gene expression data for the embryonic and larval developmental stages were obtained from previous published studies (Ulitsky et al, 2011; Pauli et al, 2012) that utilized whole embryos or larvae. In contrast our dataset was obtained exclusively from the adult heart tissue. Thus, the expression profiles of the novel ventricular-restricted genes may not reflect in parallel to the early ventricular developmental hallmarks. The colour key represents transcripts in the range of 0 for genes with least expression to 5 for transcripts with maximum expression.