The "GLO"/"PI" lines that have been duplicated in "Petunia" contain "P. hybrida GLOBOSA1" ("PhGLO1", also called "FBP1") and also "PhGLO2" (also called "PMADS2" or "FBP3"). For the functional elements equivalent to "AP3"/"DEF" in "Petunia" there is both a gene that possesses a relatively similar sequence, called "PhDEF" and there is also an atypical B function gene called PhTM6. Phylogenetic studies have placed the first three within the «euAP3» lineage, while PhTM6 belongs to that of «paleoAP3». It is worth pointing out that, in terms of evolutionary history, the appearance of the euAP3 line seems to be related with the emergence of dicotyledons, as representatives of euAP3-type B function genes are present in dicotyledons while paleoAP3 genes are present in monocotyledons and basal angiosperms, among others.