Figure 1

Dating the genome duplication event in Physcomitrella patens. a) Age distribution of paralogous EST sequences. The height of the bars reflects the amount of gene pairs in the respective bin relative to the total amount of K_S values in the distribution. b) Age distribution of duplicated genes as inferred from their point of divergence relative to the split Arabidopsis-poplar or Arabidopsis/poplar-rice in a phylogenetic tree as shown in c). The split between Arabidopsis and poplar is assumed to have occurred at about 100 MYA, while the split between monocots and eudicots is assumed to have occurred at about 150 MYA.