Control of flowering time: interacting pathways as a basis for diversity - PubMed (original) (raw)

Figure 1.

Signaling Pathways Involved in the Regulation of Flowering by Photoperiod in Arabidopsis. A diagram showing the putative relationships among genes involved in the photoperiod pathway. On the basis of the phenotypes of known mutants, genes shown in red generally repress flowering, whereas those in green promote it. Small upright arrows indicate the role of the genes as determined by overexpression in transgenic plants. Arrows between genes represent a promotive effect, whereas perpendicular lines represent a repressive effect, and simple lines represent protein–protein interactions. Arrows from the clock indicate that the expression of the gene is circadian clock controlled. Arrows to the clock indicate that the gene lengthens period length, while perpendicular lines indicate that it shortens period length. Numbers between brackets refer to the following publications, which support the indications provided in the diagram. (1) (Somers et al., 1998b) (2) (Swarup et al., 1999) (3) (Wang and Tobin, 1998) (4) (Schaffer et al., 1998) (5) (Mizoguchi et al., 2002) (6) (Goto et al., 1991) (7) (Samach et al., 2000) (8) (Onouchi et al., 2000) (9) (Alabadi et al., 2001) (10) (Strayer et al., 2000) (11) (Martinez-Garcia et al., 2000) (12) (Nelson et al., 2000) (13) (Jarillo et al., 2001) (14) (Millar et al., 1995a) (15) (Somers et al., 2000) (16) (Sugano et al., 1999) (17) (Zagotta et al., 1992) (18) (Sugano et al., 1998) (19) (Liu et al., 2001b) (20) (Hicks et al., 2001) (21) (Covington et al., 2001) (22) (Fowler et al., 1999) (23) (Park et al., 1999) (24) (Fowler et al., 1999; Park et al., 1999) (25) (Johnson et al., 1994) (26) (Bagnall et al., 1995) (27) (Guo et al., 1998) (28) (Putterill et al., 1995) (29) (Simon et al., 1996) (30) (Mozley and Thomas, 1995) (31) (Ahmad et al., 1998) (32) (Koornneef et al., 1980) (33) (Suarez-Lopez et al., 2001) (34) (Somers et al., 1998a).