Fig. 2

Phylogenetic relationships, gene structure and architecture of conserved protein motifs in NAC genes from Dactylis glomerata. a The phylogenetic tree was constructed based on the full-length sequences of Dactylis glomerata NAC proteins using Geneious 2020 software. b Exon-intron structure of Dactylis glomerata NAC genes. Blue boxes indicate exons; black lines indicate introns. c The motif composition of Dactylis glomerata NAC proteins. The motifs, numbered 1–10, are displayed in different colored boxes. The sequence information for each motif is provided in Additional file 2