PGX1 Complements the Hypocotyl Length Phenotype of
pgx1-1 and pgx1-2 Mutants.
(A) RT-PCR analysis of PGX1 expression in Col and lines expressing
PGX1-GFP driven by the PGX1 promoter in
the pgx1-1 or pgx1-2 background.
ACT2 was amplified as an internal control. Total RNA was
isolated from 10-d-old light-grown seedlings of transgenic plants grown on
MS media with 25 µg/mL
hygromycin to select against segregants lacking the
PGX1pro:PGX1-GFP transgene.
(B) Quantification of hypocotyl length in 6-d-old etiolated
seedlings of Col and complementation
lines grown on MS media without Suc.
Bars indicate sd (n ≥ 40 seedlings from two
independent experiments). Lowercase letters in (B) indicate
significantly different groups (P < 0.05, one-way ANOVA and Tukey test).