Figure 2. outlines the phylogeny of the genus Solanum and shows the close relationships of the cousins to the tomato, which include potatoes, tobacco, chili peppers, and aubergine. The closer the species is to the tomato represents the how many characteristics are shared. For example, the tomato and the potato are derived from a very close ancestor, showing they are very similar species. Whereas coffee and tomato only share a very distant ancestor, which allows for further adaptations and mutations in each species. Figure 2 is based on the morphological characteristics of the species listed.