Claim · model-written summary
Three knox genes were ectopically or over-expressed in developing primordia and mature leaves.
- Organ / stage
- developing primordia and in mature leavese0
- Gene
- knox genese0
- Outcome
- ectopically or over-expressede0
- Value
- threee0
Zea maysNot reportedMaterialCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize leaf development”
e0“three knox genes are ectopically or over-expressed in developing primordia and in mature leaves”
Title
The rough sheath2 gene negatively regulates homeobox gene expression during maize leaf development
Richard Schneeberger; Miltos Tsiantis; Michael Freeling; et al. Development 1998. doi:10.1242/dev.125.15.2857
Other claims from this paper (6)
- Observation Independent rough sheath2 mutations produced pleiotropic leaf, node and internode phenotypes sensitive to genetic background and environment.
- Observation The rs2 mutant phenotypes included dwarfism, leaf twisting and disorganized blade-sheath boundary differentiation.
- Observation The rs2 mutant phenotypes included aberrant vascular patterning and semi-bladeless leaves.
- Observation knox genes were initially repressed as rs2 leaf founder cells were recruited in the meristem.
- Observation knox repression in rs2 mutants was often incomplete and was not maintained as leaves developed.
- Mechanism The authors proposed that rs2 represses knox gene expression directly or indirectly and is essential to normal leaf morphology.