SIX6 and infection: A previous study based on expression profile analysis of Fol revealed that the transcription levels of both SGE1 and FTF1 increase during infection processes, and intrinsic expression of FTF1 or SGE1 induces expression of a large overlapping set of known SIX genes, including SIX6, SIX9, and SIX13, in Fol, suggesting interaction of these TFs (van der Does et al., 2016).