The Wheat VRN2 Gene Is a Flowering Repressor Down-Regulated by Vernalization
Michigan Technological University · United States Department of Agriculture · +4 more institutions
Abstract
Plants with a winter growth habit flower earlier when exposed for several weeks to cold temperatures, a process called vernalization. We report here the positional cloning of the wheat vernalization gene VRN2, a dominant repressor of flowering that is down-regulated by vernalization. Loss of function of VRN2, whether by natural mutations or deletions, resulted in spring lines, which do not require vernalization to flower. Reduction of the RNA level of VRN2 by RNA interference accelerated the flowering time of transgenic winter-wheat plants by more than a month.
Citation impact
- FWCI
- 68.54
- Percentile
- 100%
- References
- 17
Authors
9- LYLiuling YanCorresponding
Michigan Technological University, United States Department of Agriculture, University of Georgia, Purdue University West Lafayette, Western Regional Research Center, University of California, Davis
- ALArtem Loukoianov
Michigan Technological University, United States Department of Agriculture, University of Georgia, Purdue University West Lafayette, Western Regional Research Center, University of California, Davis
- AEAnn E. Blechl
Michigan Technological University, United States Department of Agriculture, University of Georgia, Purdue University West Lafayette, Western Regional Research Center, University of California, Davis
- GTG. TranquilliCorresponding
Michigan Technological University, United States Department of Agriculture, University of Georgia, Purdue University West Lafayette, Western Regional Research Center, University of California, Davis
- WRWusirika Ramakrishna
Michigan Technological University, United States Department of Agriculture, University of Georgia, Purdue University West Lafayette, Western Regional Research Center, University of California, Davis
Topics & keywords
- Vernalization
- Biology
- Repressor
- Gene
- Habit
- RNA interference
- Genetics
- Botany