Table 1.

Efficiency and Phenotypes of Transgenic Roots

Phenotype	pHG8-YFP	pHpQR1	pHpQR2	pHpQR2-QR1	P Level
Transformation efficiencya	28 ± 2.2	33 ± 5.3	30 ± 3.2	31 ± 4.3	0.37
	n = 1271	n = 1144	n = 1138	n = 1051
YFP-positive roots per plantb	1.8 ± 0.4	1.6 ± 0.3	1.7 ± 0.2	1.6 ± 0.1	0.83
	n = 352	n = 378	n = 339	n = 323
Root length (cm)c	3.5 ± 1.8	3.4 ± 1.7	3.2 ± 1.6	3 ± 1.5	0.18
	n = 49	n = 50	n = 49	n = 51
Lateral roots per YFP rootc	0.1 ± 0.3	0.1 ± 0.4	0.1 ± 0.3	0.1 ± 0.4	0.82
	n = 49	n = 50	n = 49	n = 51
Root growth no DMBQ (mm/24 h)c	2.6 ± 0.4	2.7 ± 0.5	2.6 ± 0.4	2.6 ± 0.3	0.72
	n = 40	n = 40	n = 40	n = 40
Root growth with DMBQ (mm/24 h)c	2.7 ± 0.5	2.6 ± 0.4	2.7 ± 0.5	2.6 ± 0.5	0.22
	n = 40	n = 40	n = 40	n = 40

Values are mean ± sd with n = total number of plants or roots in all replicates. Means are the averages of three independent transformation experiments per construction.

^aPercentage of plants with at least one yellow root.

^bTwenty-one days after transformation.

^cThirty-three days after transformation.