Fig. 4 in Complete plastome phylogeny and an update on cox1 intron evolution of Hyoscyameae (Solanaceae)

Fig. 4 An evolutionary scenario for the cox1 intron acquisitions in the tribe Hyoscyameae. Purple dots indicate mitochondrial cox1 intron acquisitions by horizontal gene transfer. The paraphyly of the genus Scopolia is supported by plastid and nuclear markers (see text and Fig. 3)