Fig. 3: Evolutionary history of Saccharinae.
From: The reference genome of Miscanthus floridulus illuminates the evolution of Saccharinae
a, Distribution of synonymous nucleotide substitutions between inter- or intraspecies. The lines with different colours represents the Ks distribution of syntelogues between two species or subgenomes of same species. b, A schematic species tree outlining the evolutionary history of Saccharinae group. The dark green explosion shapes show WGD events and light blue triangles indicate genome rearrangement events. A time line (leftmost) is shown in Ma and a Ks line (rightmost) is also displayed. Chromosome numbers of each state of a plant are shown along branches. (1) Time of divergence of Miscanthus and Saccharum with Sorghum. (2) Time of divergence of Misanthus with Saccharum. (3) Time of divergence of Miscanthus subgenomes. (4) Time of autopolyploidization of the ancestor of S. spontaneum. The plot was based on our data and analyses plus part of the results from a previous paper15.
