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Fig. 5. Genetic interactions between GIS2, SPY and trichome
initiation regulators in Arabidopsis. (A,B)
Trichome initiation on flowers of spy-3 (A) and 35S:GIS2
spy-3 mutants (B). (C) Trichome initiation on stems of gl1,
gl3, 35S:GIS2 gl1 and 35S:GIS2 gl3 plants. (D) Effect of
R overexpression on trichome initiation on gis2 flowers
(left) and third branches (right). (E) GL1 expression in
inflorescence organs of two 35S:GIS2 overexpressor lines (left) and
in the gis2 mutant (right). Transcript levels were measured by
real-time PCR and the values represent ratios of normalized levels to
controls. U.I., upper developing inflorescence; W.I., whole developing
inflorescence; WT, wild type.