Table 1.

Summary of Phenotypic Analysis of Transgenic Rice with SLR1 Domain Deletions

Phenotype
slr1 Mutant-LikeTallNormalMild DwarfSevere Dwarf
Relative heighta
Construct>150>120100%60 to 80%<50%TotalbGA Responsec
Intact0 (0)d0 (0)9 (25)21 (58)6 (17)36Yese
ΔDELLA0 (0)0 (0)2 (5)7 (19)28 (76)37No
Δspace0 (0)0 (0)1 (7)3 (21)10 (71)14No
ΔTVHYNP0 (0)0 (0)3 (6)10 (21)34 (72)47No
ΔpolyS/T/V0 (0)0 (0)5 (7)20 (29)44 (64)69Yes
ΔLZ0 (0)0 (0)21 (88)3 (12)0 (0)24Yes
ΔC-Ter10 (37)9 (33)8 (30)0 (0)0 (0)27Yesf
  • a Relative height indicates the dwarfism of each transgenic plant compared with wild type as 100%.

  • b Total number of independent T1 transgenic plants examined.

  • c The GA response was determined whether or not application of 100 μM GA3 caused shoot elongation.

  • d Numbers in parentheses indicate the percentages of T1 transgenic plants in each line exhibiting each phenotype.

  • e Yes or no indicates whether or not shoot elongation occurred.

  • f In ΔC-Ter plants, the tall or normal phenotype plants were used to determine the GA response.