Fig. 4

Duplication of the regions containing myb114 in Melastoma. A Duplication of the regions containing myb114 on scaffold27 of Melastoma candidum. The duplicate regions (copy 1 and copy 2 in yellow) are 2.3 kb long and 10 kb away from each other. The 6-kb highly differentiated region in M. normale corresponds to the left box with a black dotted line. The purple boxes in the duplicate regions represent exons of the myb114 genes. B A schematic diagram showing evolutionary events occurring in myb114 of Melastoma species. The phylogenetic tree was constructed based on chloroplast genome sequences of these species. The red triangle represents the occurrence of the 2.3-kb duplication event, which produced copy1 and copy2 regions in the common ancestor of M. candidum, M. sanguineum, and M. penicillatum