2019
DOI: 10.1242/dev.172684
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VERNALIZATION1 controls developmental responses of winter wheat under high ambient temperatures

Abstract: Low temperatures are required to regulate the transition from vegetative to reproductive growth via a pathway called vernalization. In wheat, vernalization predominantly involves the cold upregulation of the floral activator VERNALIZATION1 ( VRN1 ). Here, we have used an extreme vernalization response, identified through studying ambient temperature responses, to reveal the complexity of temperature inputs into VRN-A1 , with allelic inter-cop… Show more

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Cited by 54 publications
(66 citation statements)
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“…Vernalization is a key role for many plants to adapt to a temperature cue for flowering and germinating under suitable conditions [59,60]. VRN2 and its orthologs, with high conserved sequences during evolution, are often repressors of flowering in monocot cereals under LD conditions [61].…”
Section: Discussionmentioning
confidence: 99%
“…Vernalization is a key role for many plants to adapt to a temperature cue for flowering and germinating under suitable conditions [59,60]. VRN2 and its orthologs, with high conserved sequences during evolution, are often repressors of flowering in monocot cereals under LD conditions [61].…”
Section: Discussionmentioning
confidence: 99%
“…Responses to these seasonal cues align flowering with the favourable conditions of spring, enabling the completion of fertilization and grain production before the onset of hot and dry conditions of summer ( Fjellheim et al , 2014 ). The growth habit of the plant also influences its response to high temperatures ( Craufurd and Wheeler, 2009 ; Dixon et al 2019 ). For example, in field experiments using supplementary heating, spring wheat plants exposed to temperatures between 0 °C and 40 °C flowered significantly earlier with increasing temperature ( White et al , 2011 ).…”
Section: Temperature Effects On Reproductive Developmentmentioning
confidence: 99%
“…For example, in field experiments using supplementary heating, spring wheat plants exposed to temperatures between 0 °C and 40 °C flowered significantly earlier with increasing temperature ( White et al , 2011 ). In winter wheat, however, high-temperature treatments during or post-vernalization delay early and late stages of reproductive development, with the flowering of some cultivars occurring later at 25 °C than at 11 °C or 18 °C ( Dixon et al , 2019 ).…”
Section: Temperature Effects On Reproductive Developmentmentioning
confidence: 99%
“…As a MADS box transcription factor, VRN1 binds to many targets in the genome and may regulate many genes, linking vernalization and photoperiod pathways (Deng et al, 2015). Moreover, the allelic diversity of VRN1 copies provides wide plasticity of temperature-based responses in winter wheat (Dixon et al, 2019).…”
Section: Pal Allele Carrying Intermediate Phenology and Light Vernalimentioning
confidence: 99%