Fig. 3

Phylogenetic relationships, gene structure and gene architecture of the conserved protein motifs in ZjRNases. a Phylogenetic tree was constructed based on the full-length sequences of ZjRNase proteins. b Motif composition. The motifs, numbered 1–5, were displayed in different coloured boxes. c Exon–intron structure of ZjRNases. The light green boxes indicate untranslated 5′- and 3′-regions; the yellow boxes indicate exons; and the black lines indicate introns