Fig. 1

a–d Euglena gracilis exon structure. The predicted gene structure of several selected contigs is shown, including the mapped transcripts (red), predicted splice sites and intergenic regions. Note that transcripts 524 and 326, (panel b) which encompass essentially the same portions of the genome, demonstrate possible differential exon inclusion, indicating differential open reading frame organisation and possible alternate splicing. Black boxes indicate exons, with predicted splice site dinucleotides indicated above. Transcripts are shown as arrows with the arrowhead indicating the predicted direction of transcription. Protein product annotations are indicated in parentheses. Contig sizes are shown in kilobase; note that each contig is not drawn to the same scale. Further examples of predicted contig gene organisation are given in Additional file 1: Figure S1