Fig. 4

Distribution of introns among 75 pomelo UGT genes. The introns were mapped and numbered according to the alignment of the encoding sequences for the UGT genes. The position of introns inserted into each gene is represented by the scale on the top of the map. The gray lines indicate the length of their amino acid sequences. Arrows indicate the position of intron insertion in each gene. Intron phases are represented by different shapes of arrows for 0, 1, and 2, respectively. Phylogenetic relationship on the left indicate the classification of pomelo UGT genes