Fig. 3

Phylogenetic relationships, gene structure and architecture of conserved protein motifs in PTI1 genes from foxtail millet. The phylogenetic tree was constructed based on the full-length sequences of foxtail millet PTI1 proteins using MEGA7 software (A). Exon-intron structure of foxtail millet PTI1 genes. Green boxes indicate untranslated 5′- and 3′-regions; yellow boxes indicate exons; black lines indicate introns (B). The motif composition of foxtail millet PTI1 proteins. The motifs, numbers 1–10, are displayed in different colored boxes (C). The sequence information for each motif is provided in Additional file 2. The length of protein can be estimated using the scale at the bottom