Fig. 2

Phylogenetic tree, gene structure and motif distribution analysis of 53 IbDEAD-box members. A Phylogenetic tree of DEAD-box members in sweetpotato. A total of 53 IbDEAD-box proteins were used to construct the maximum-likelihood (ML) phylogenetic tree by MEGA X with 1,000 bootstrap replicates. The different groups are marked with different colors. B The exon–intron structure analysis of 53 IbDEAD-box genes. Exon and introns lengths are displayed proportionally, yellow boxes represent exons, black lines represent introns, and green boxes represent 5’ and 3’ UTR. C Motif distribution of 53 IbDEAD-box proteins. The different colored boxes represent 15 motifs, and the box lengths represent motif lengths