Fig. 5
From: Phylogenetic analysis of phytochrome A gene from Lablab purpureus (L.) Sweet
A theoretical model for photoperiod responsive flowering and growth habit mediating plant architecture in response to short day (SD) and long day (LD) conditions based on genes reported in Lablab purpureus, Glycine max and related legumes. Light arrows in SD indicate repressed E3 and E4 during short days. Question marks indicate the unknown genes involved in mediating the process. Genes E4, E1, FT2a and FT5a are yet to be identified in Lablab purpureus. PHYA3 and PHYA2 are homologs of phytochrome A. E1, E3 and E4 are maturity loci governing photoperiodic regulation in Glycine max. FT2a and FT5a are Flowering locus T homologs reported as florigens in many legumes and induce flowering