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Figure 2 | BMC Evolutionary Biology

Figure 2

From: Whole genome duplications and expansion of the vertebrate GATA transcription factor gene family

Figure 2

Exon/intron structure and conserved motifs of deuterostome GATAs. Identified exons are shown as solid blocks (boundaries confirmed by cDNA sequence) or as dotted lines (boundaries not confirmed by cDNA sequence). GATA123 orthologs for human (HsapGATA1,2,3), zebrafish (Drer1a,2a,3) hemichordate (SkowGATA123), echinoderm (SpurGATAc), and cephalochordate (BfloGATA123) are located within the blue block (top), and GATA456 (HsapGATA4,5,6, DrerGATA4,5,6, SkowGATA456, SpurGATAe, BfloGATA456) orthologs are located within the red block (bottom). The zebrafish GATA genes, Drer1b and Drer2b, are nearly identical in structure and length to Drer1a and Drer2a, respectively, and are not shown. The sole cnidarian GATA from Nematostella (NvecGATA) is shown centrally. Motifs are represented within the exons as colored blocks as specified in insets. The dotted line for the first SpurGATAc exon indicates its possible pseudo-exon status, and the open bars for SkowGATAs are due to uncertainty regarding the exact ends of the exons. Thick black lines represent ancestral eumetazoan splice sites for GATA genes, blue and red lines represent ancestral deuterostome splice sites for GATA123 and GATA456 genes, respectively, and light black lines represent novel exons.

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