lfy enhances the floral primordium initiation defects of auxin transport mutants. (a–f) Close-up view of the inflorescences formed in a strong pin1 mutant allele, pin1-8 (a); and pin1-8
lfy-1 (b); a weak pin1 mutant allele, pin1-5 (c); and pin1-5 lfy-6 (d); pid-16 (e) and pid-16 lfy-6 (f); (g–i) Quantification of the flower initiation defects in pin1-8 and pin1-8
lfy-1 (g); pin1-5, pin1-5 lfy-5, and pin1-5
lfy-6 (h); and pid-16 and pid-16 lfy-6 (i). Note that lfy-1 and lfy-6 carry the exact same mutation (Q32stop) but are the Columbia (Col) and Landsberg erecta (Ler) cultivar, respectively. We employ both alleles as to eliminate mixed genetic backgrounds when generating double mutants. Scale bar, 200 µm (a,b,d,f), 5 mm (c,e).