Genetic Relationship between WOX11 and ERF3
in Controlling Rice Crown Root Development and RR2
Expression.
(A) Transcript levels of ERF3 and
WOX11 in roots of wild-type (WT) and
amiERF3/wox11 plants. The PCR signals were
normalized with ACTIN1 transcripts. Transcript level from the
wild type was set at 1. Bars are means ± sd from three
technical replicates.
(B) to (D) Crown root phenotypes of indicated
genotypes. OxWOX11, WOX11 overexpression
lines; OxERF3, ERF3 overexpression lines;
ERF3:ERF3/wox11, ERF3
cDNA under the ERF3 promoter in the wox11
background. Significant differences between samples (t test)
are indicated by different letters. Bar = 1 cm in (B) and 5 cm in
(C).
(E)
RR2 transcripts detected by in situ hybridization in the wild
type, wox11,
ERF3:ERF3/wox11, and
amiERF3/wox11. Arrows indicate crown root
initials. Bar = 75 μm.