Direct links between the vernalization response and other key traits of cereal crops
MetadataShow full item record
Transcription of the VERNALIZATION1 gene (VRN1) is induced by prolonged cold (vernalization) to trigger flowering of cereal crops, such as wheat and barley. VRN1 encodes a MADS box transcription factor that promotes flowering by regulating the expression of other genes. Here we use transcriptome sequencing (RNA-seq) and chromatin immunoprecipitation sequencing (ChIP-seq) to identify direct targets of VRN1. Over 500 genomic regions were identified as potential VRN1-binding targets by ChIP-seq. VRN1 binds the promoter of FLOWERING LOCUS T-like 1, a promoter of flowering in vernalized plants. VRN1 also targets VERNALIZATION2 and ODDSOC2, repressors of flowering that are downregulated in vernalized plants. RNA-seq identified additional VRN1 targets that might play roles in triggering flowering. Other targets of VRN1 include genes that play central roles in low-temperature-induced freezing tolerance, spike architecture and hormone metabolism. This provides evidence for direct regulatory links between the vernalization response pathway and other important traits in cereal crops.
Showing items related by title, author, creator and subject.
INDEL variation in the regulatory region of the major flowering time gene LanFTc1 is associated with vernalization response and flowering time in narrow-leafed lupin (Lupinus angustifolius L.)Taylor, C.; Kamphuis, Lars; Zhang, W.; Garg, G.; Berger, J.; Mousavi-Derazmahalleh, M.; Bayer, P.; Edwards, D.; Singh, Karam; Cowling, W.; Nelson, M. (2018)© 2018 The Authors Plant, Cell & Environment Published by John Wiley & Sons Ltd. Narrow-leafed lupin (Lupinus angustifolius L.) cultivation was transformed by 2 dominant vernalization-insensitive, early flowering time ...
Abbo, S.; Shtienberg, D.; Lichtenzveig, Judith; Lev-Yadun, S.; Gopher, A. (2003)The widely accepted models describing the emergence of domesticated grain crops from their wild type ancestors are mostly based upon selection (conscious or unconscious) of major features related either to seed dispersal ...
Salt tolerance, date of flowering and rain affect the productivity of wheat and barley on rainfed saline landSetter, T.; Waters, I.; Stefanova, Katia; Munns, R.; Barrett-Lennard, E. (2016)© 2016 Elsevier. Over two growing seasons, we examined the effects of natural field salinity on grain production by a range of wheat and barley genotypes on rainfed (i.e. non-irrigated) land with a Mediterranean climate. ...