Table 2.

Differential Response of the I1 and I2 Positions in the SAM to Repression of ABP1

Genotype	I1 or I2 Induction	Severely Retarded Growth (Two or Fewer Leaves in 4 Weeks)	Moderately Retarded Growth (Three to Four Leaves in 4 Weeks)	Normal Growth (Five to Six Leaves in 4 Weeks)	Sample Size (n)
NtSS12S6	I1	34	19	6	59
	I2	0	10	27	37
Tet∷GUS	I1	0	5	26	31
	I2	0	0	18	18

SAMs of NtSS12S6 and Tet:GUS plants were induced on the I1 or I2 position, and the subsequent regeneration of the apex (quantified by leaf formation) was measured.