PlantRegMap/PlantTFDB v5.0
Plant Transcription Factor Database
Triticum aestivum
GRF Family
Species TF ID Description
Traes_2AL_2FE59A2DC.1GRF family protein
Traes_2AS_CA4D79100.1GRF family protein
Traes_2BL_DE9A7327E.1GRF family protein
Traes_2BS_E3CBE0B73.1GRF family protein
Traes_2DL_243DA9D84.2GRF family protein
Traes_4AL_4954CD38D.1GRF family protein
Traes_4AL_A8CBB811B.16GRF family protein
Traes_4BS_1B1F669A3.2GRF family protein
Traes_4BS_AAE1439D4.7GRF family protein
Traes_4DS_0FB3F3EE9.1GRF family protein
Traes_4DS_0FB3F3EE91.1GRF family protein
Traes_4DS_261E93270.11GRF family protein
Traes_6AL_EEA5F4238.1GRF family protein
Traes_6AL_F5BFFCA3E.1GRF family protein
Traes_6BL_7462E6F9B.1GRF family protein
Traes_6DL_4C3F04219.1GRF family protein
GRF Family Introduction

Previously, we identified a novel rice gene, GROWTH-REGULATING FACTOR1 (OsGRF1), which encodes a putative transcription factor that appears to play a regulatory role in stem elongation. We now describe the GRF gene family of Arabidopsis thaliana (AtGRF), which comprises nine members. The deduced AtGRF proteins contain the same characteristic regions--the QLQ (Gln, Leu, Gln) and WRC (Trp, Arg, Cys) domains--as do OsGRF1 and related proteins in rice, as well as features indicating a function in transcriptional regulation. Most of the AtGRF genes are strongly expressed in actively growing and developing tissues, such as shoot tips, flower buds, and roots, but weakly in mature stem and leaf tissues. Overexpression of AtGRF1 and AtGRF2 resulted in larger leaves and cotyledons, as well as in delayed bolting of the inflorescence stem when compared to wild-type plants. In contrast, triple insertional null mutants of AtGRF1-AtGRF3 had smaller leaves and cotyledons, whereas single mutants displayed no changes in phenotype and double mutants displayed only minor ones. The alteration of leaf growth in overexpressors and triple mutants was based on an increase or decrease in cell size, respectively. These results indicate that AtGRF proteins play a role in the regulation of cell expansion in leaf and cotyledon tissues.

Kim JH, Choi D, Kende H.
The AtGRF family of putative transcription factors is involved in leaf and cotyledon growth in Arabidopsis.
Plant J. 2003 Oct;36(1):94-104.
PMID: 12974814