Figure 3.

Orthologous relationships between four culinary herbs. (A) Venn diagram of orthologous groups shared among species. Numbers next to the species and outside of the plot indicate the number of singleton genes. (B) Cladogram of the species’ evolutionary relationships. Species belonging to the Lamiaceae family are further divided into the Nepetoideae subfamily and Mentheae and Ocimeae clades (Eltsholtzieae clade is not represented here). (C) Gene family evolution of four Nepetoideae culinary herbs and outgroups. Using a root age of 125 million years ago, the species were estimated to share 12,615 gene families. Changes to gene family sizes for each lineage are indicated by pie charts, where green indicates expansion, blue indicates neutrality, and red indicates contraction.