Fig. 3

Phylogenetic relationship, gene structure and architecture of the conserved protein motifs in NbFLAs. a The phylogenetic tree was constructed based on the full-length sequences of NbFLA proteins. b Exon-intron structure of NbFLAs. Pink boxes indicate untranslated 5′- and 3′-regions; green boxes indicate exons; and black lines indicate introns. The fasciclin domains are shown by yellow boxes. c The motif composition. The motifs, numbered 1–20, are displayed in different colored boxes. The sequence information for each motif is provided in Additional file 1: Table S2