HY5ox/pifQein3eil1
Multi-Component SwitchHY5ox/pifQein3eil1 is an Arabidopsis multi-component genetic switch-like genotype comprising HY5 overexpression combined with loss of EIN3, EIL1, and four PIF genes. In dark-grown seedlings, this combination drives strong photomorphogenic development and produces phenotypes highly similar to wild-type seedlings grown in continuous light.