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Phylogenetic relationships, conserved motif and gene structure of potato MADS genes. a The NJ-tree of 153 potato MADS-box genes, constructed with the same method mentioned above. b Conserved motif analysis of 153 MADS-box genes. Rounded rectangle with different colors represent different motif. c Gene structure of MADS-box genes. Exon and UTR are box colored with black and grey respectively, among which the black line represent introns
