GAI — Lactuca sativa
Summary
LsGAI (GAI) on lettuce chromosome 3 encodes a DELLA protein, a member of the GRAS transcription factor family, characterized by DELLA_N and GRAS domains. The encoded product exhibits gibberellin binding, phytochrome binding, and E-box binding activities, and is associated with the regulation of gibberellic acid-mediated signalling, response to karrikin, detection of light, and regulation of plant organ formation timing. LsGAI is linked to numerous agronomic traits including leaf length-to-width ratio, grain yield, fruit quality, flower number, seed coat hardness, and shoot elongation under submergence. It has been connected to dwarfism, root development, stress tolerance, and longevity. Studies of related genes in other species link the family to growth regulation, thermomemory, gibberellin homeostasis, fruit ripening, and amino acid accumulation.
Annotations
- Chromosome
- 3
- Related genes
- GAI, PCF1, DOF4.3, DPBF2, CHB4, TOE1, TCP23, PIF4
- GO terms
- Carpel Development, gibberellin-mediated signalling, Singlet Oxygen-mediated Programmed Cell Death, Regulation Of Circadian Rhythm, response to long-day, flowering, Gibberellin Binding, Regulation Of Nitrogen Utilization, Cis-regulatory Region Sequence-specific DNA Binding
- Publications
- 31013972, 27496682, 20387035, 10985392, 11144265, 26358558, 32248530, 33665849
- Traits
- shade avoidance response, dark-induced leaf senescence, photomorphogenesis, nitrate-responsive gene expression, lateral root growth, nitrate response, dehydration tolerance, leaf morphology