Fig. 3

Evolutionary and comparative genomic analyses of the newly assembledE. salsugineumgenome. a Phylogenetic relationships and divergence times of E. salsugineum and nine other Brassicaceae species with A. arabicum as the outgroup. The blue pentagram represents the At-α WGD event shared by all Brassicaceae species, and the yellow circle represents a Brassicae-specific triplication. The estimated divergence times (million years ago, Mya) are indicated at each node of the phylogenetic tree. b Expansions and contractions of gene families. The colors in light pink and dark blue indicate the expanded and contracted gene families, respectively. c Clusters of orthologous and paralogous gene families in E. salsugineum and nine more fully sequenced plant genomes. Gene families were identified using the OrthoFinder package with the default parameters. d Estimated insertion times of LTR retrotransposons within A. thaliana, E. heterophyllum, and E. salsugineum. e GO enrichment analysis bubble plot of significantly expanded genes in E. salsugineum