SHR — Arabidopsis thaliana

Summary

AT4G37650, also known as SHR, SHORT ROOT, or SHOOT GRAVITROPISM 7, encodes a GRAS family transcription factor in Arabidopsis thaliana (chromosome 4) that binds sequence-specific DNA and regulates transcription. The gene is associated with root radial pattern formation, endodermis and bundle sheath cell fate specification, Casparian strip assembly, asymmetric stem cell division, stem cell renewal, and amyloplast organization. It has been linked to numerous traits including root length, thickness, and morphology, plant height, adventitious root number, leaf color and senescence, stem elongation, seed maturation, yield, auxin and sugar content, callus induction, and responses to oxidative stress. The protein localizes to the nucleus, Golgi complex, and endosomes. Related genes in other species are linked to fruit size.