Gene regulatory network in three hybrid combinations. DGs in three hybrid combinations were used for direct interaction analysis by Pathway Studio 9.0. Interaction searching includes promoter binding, expression, regulation and binding. LHY, LATE ELONGATED HYPOCOTYL; PRR7, PSEUDO-RESPONSE REGULATOR 7; SVP, SHORT VEGETATIVE PHASE; TIC, TIME FOR COFFEE; GI, GIGANTEA; ZTL, ZEITLUPE; APRR3, PSEUDO-RESPONSE REGULATOR 3; FKF1, FLAVIN-BINDING, KELCH REPEAT, F-BOX 1; TSF, TWIN SISTER OF FT; COP1, CONSTITUTIVELY PHOTOMORPHOGENIC 1; TT4, TRANSPARENT TESTA 4. Black, dark green, navy refers to protein are encoded by DGs in LY2163, LY2186 and LYP9 respectively; dark magenta refers to protein are encoded by DGs in LY2163 and LYP9; orange refers to protein are encoded by DGs in LY2186 and LYP9; red refers to protein are encoded by DGs in LY2163, LY2186 and LYP9.