Fig. 2
The evolution of R. molle genome (a) Phylogenetic relationship and estimated divergence time among eleven plant species. The phylogenetic tree was constructed using 1827 single-copy genes shared by all species used in current study, and the estimated divergence times are displayed by the black number at each branch node. b The distributions of the Ks values for paralogous genes in R. molle genome and orthologous genes from four other relative species. Abbreviation: Rmo-R. molle; Ath-A. chinensis; Rde-R. delavayi; Rsi-R. simsii; Rwi-R. williamsianum. c Whole-genome duplication events detected in R. molle and other Ericaceae species. d Petal diagram displaying the common and specific gene families between R. molle and ten other plant species. The number in middle circle represents the number of shared gene families among all species, and number in the edge represents the number of specific gene families in each species