Figure 1 in Leech anticoagulants are ancestral and likely to be multifunctional

Figure 1. Diversity of transcripts putatively related to bloodfeeding in the transcriptomes of non-bloodfeeding hirudineans and non-leech relatives. Transcript diversity is shown as a percentage, followed by their protein family name and the percentage of transcripts in parenthesis. Blue areas belong to contigs with BLAST hits against non-archetypal leech anticoagulants; red areas represent contigs with BLAST hits against archetypal anticoagulants.