Table 1.

Morphological phenotype of trg1-1 fruit and exocarp cell

	Wid type (Ws)	trg1-1
Fruit length (mm)	12.2 (0.6)	8.3 (0.5)	* n = 20
Circumference of a carpel (semicircle, μm)	1569 (9)	2163 (118)	* n = 4
Number of exocarp cells in a carpel section	48.5 (2.6)	49.8 (1.7)	n = 4
Average width of a exocarp cell (μm)	32.4 (1.8)	43.5 (2.6)	* n = 4

Number of exocarp cells in a carpel was counted from the stained cross section observed with a microscope, and a typical image is shown in Fig. 2C. The circumference of a carpel (semicircle of a pericarp) was measured from the images using AxioVision software (Carl Zeiss). SD of the biological replicates are shown in parentheses. Asterisks indicate statistical differences between wild-type and mutant values (P < 0.05, Student’s t test).