Fig. 2

Phylogenetic relationships, gene structures and architectures of the conserved protein motifs in ZF-HD genes from Tartary buckwheat. (a) The phylogenetic tree was constructed based on the full-length sequences of Tartary buckwheat ZF-HD proteins using Geneious R11 software. (b) Exon-intron structures of the Tartary buckwheat ZF-HD genes. Green boxes indicate untranslated 5′- and 3′-regions; yellow boxes indicate exons; and black lines indicate introns. The ZF-HD domains are highlighted by red boxes. The number indicates the phases of the corresponding introns. (c) The motif composition of the Tartary buckwheat ZF-HD proteins. The motifs, numbered 1–10, are displayed in different colored boxes. The sequence information for each motif is provided in Additional file 3: Table S2. The length of the protein can be estimated using the scale at the bottom