Claim · model-written summary
LsKAI2b was more highly expressed than LsKAI2a in dry achenes and early imbibition.
- Taxon
- lettuce
Lactuca sativae1 - Organ / stage
- dry achenese0
- Gene
- LsKAI2be0
- Outcome
- LsKAI2b is more highly expressede0
- Direction
- more highlye0
- Comparator
- LsKAI2ae0
Not reportedMaterialCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“LsKAI2b is more highly expressed than LsKAI2a in dry achenes and during early stages of imbibition.”
e1“The lettuce genome”
Title
Stephanie E Martinez; Caitlin E Conn; Angelica M Guercio; et al. PLANT PHYSIOLOGY 2022. doi:10.1093/plphys/kiac328
Other claims from this paper (12)
- Intervention effect Grand Rapids lettuce germinated in response to nanomolar KAR1.
- Intervention effect Lettuce was less responsive to KAR2 than to KAR1.
- Intervention effect Lettuce was less responsive to rac-GR24 than to KAR1.
- Observation The lettuce genome contains two KAI2 copies.
- Intervention effect An LsKAI2b transgene conferred robust KAR1 responses in Arabidopsis.
- Intervention effect An LsKAI2a transgene did not confer robust KAR1 responses in Arabidopsis.
- Mechanism The authors infer that LsKAI2b likely mediates KAR1 responses in lettuce.
- Observation KAI2 pocket residues 96, 124, 139 and 161 were candidate determinants of ligand specificity.
- Observation Almost all surveyed KAI2 proteins carried Tyr or Phe at residue 124.
- Observation Y124-type KAI2 genes were more broadly distributed in asterids than F124-type genes.
- Intervention effect Substituting four KAI2 residues in Arabidopsis produced diverse responses to three ligands.
- Mechanism The authors suggest diverse KAI2 ligand preferences could evolve through few mutations.