Quantification of the loss-of-petal phenotype in NGAL1 over-expression lines.

Plants were randomly selected from each OE line (N≥28) to score the petal loss phenotype. Flowers produced by each plant were randomly picked and examined with a stereoscope.1Total numbers of flowers examined for each OE line.2Abnormal flowers are defined as flowers have at least one abnormal filament-like petal or petal less.