SCR — Asparagus officinalis

Summary

AoSCR (SCR) on asparagus chromosome 2 encodes a GRAS family transcription factor with sequence-specific DNA binding and protein homodimerization activity. In asparagus, it is associated with endodermis and bundle sheath cell fate specification, radial pattern formation, root meristem size regulation, amyloplast organization, negative gravitropism, arbuscular mycorrhizae formation, and response to nutrients and symbiotic fungi. It localizes to the nucleus, cytoplasm, and Golgi complex. The gene has been linked to yield, leaf growth and development, root morphology traits including adventitious root number and thickness, cell cycle and elongation traits, oxidative stress response, and chlorophyll degradation and leaf senescence. Studies of related genes in other species link the family to root ground tissue patterning, quiescent center formation, endodermis development, and shoot gravitropism.