Figure 1. Genomic structure and location of Nile tilapia piscidin genes.

a. Comparison of the genomic organization of piscidin genes of Nile tilapia. The five Nile tilapia piscidin genes were located between the ninth and tenth exons of exostosin-1a-like. Both were transcribed in reverse. b. The length of the coding sequence of each exon is indicated by numbers above the boxes, and each intron is indicated by numbers above the line. Red indicates regions of translated amino acid sequences, and gray indicates the 5′ and 3′ untranslated regions (UTRs).