- Fruit development
- Patterning
- Carpel development requires AG and SEP genes (MADS box TFs)
- Genes only in flowering plants, common to all
- Dry fruits need to have a means of opening, which is
regulated
- Carbohydrate import, storage as starch
- Polyphenolic synthesis
- Associated with pigment
- Also associated with lignification of dry fruit carpel wall
- Patterning
- Fruit ripening
- Starch conversion to simple sugars
- Wall breakdown
- Galactosidases, glucosidases
- Ethylene signaling
- Receptor family has five members of two types
- ETR1 and ERS1 form one type
- Ethylene binding and dimerization at N terminal
- His kinase domain at C terminal
- Like in bacterial two component signaling systems
- ETR2, ERS2, and EIN4 lack His kinase domain, have
different kinase domain
- ETR1 and ERS1 form one type
- Signaling pathway
- CTR1 is a negative regulator
- Mutant shows constitutive triple response
Radial swelling, hypocotyl inhibition, hook
opening - Encodes product homologous to MAPKKK proteins
- Mutant shows constitutive triple response
- CTR1 is a negative regulator
- Receptor family has five members of two types