Fig. 1

Chromosome location, phylogenetic tree, structural gene features and conserved protein motif of MGT genes in grape. A Chromosomal location of nine VvMGT genes in grape. B Structure and phylogenetic analysis of VvMGT genes. The blue boxes, black lines and yellow boxes in the gene structure diagram represent untranslated regions(UTRs), introns and coding sequence (CDS), respectively. Gene models are drawn to scale as indicated on the x-axis. C Conserved motif in MGT proteins. Ten motifs (motif1 to motif 10) were identified with MEME tool and representation of each motif was illustrated with a different color. The lengths and positions of the colored blocks correspond to the lengths and positions of the motifs in the individual protein sequence, respectively. D MEME-identified sequence motifs present in the protein sequence of VvMGT genes. E Multiple sequence alignment of VvMGT genes showing their conserved regions and GMN motif, similar amino acids are highlighted in same color, respectively. Predicted C-terminal transmembrane domains (TM1 and TM2) and the conserved GMN motif are indicated