Fig. 6From: Genome-wide identification of the peptide transporter family in rice and analysis of the PTR expression modulation in two near-isogenic lines with different nitrogen use efficiencyGene structure and conserved motifs in PTR genes in rice. a Exon-intron structure of pineapple PTR genes. Green boxes indicate untranslated regions; yellow boxes indicate exons; black lines incicate introns. b The motif composition of rice PTR proteins. The eleven type motifs are displayed in different colored boxes. The information for each motif is shown on the right. The length of gene/protein can be estimated using the scale at the bottomBack to article page