Can a late bloomer become an early bird? Tools for flowering time adjustment

Milec, Zbyněk; Valárik, Miroslav; Bartoš, Jan; Šafář, Jan

doi:10.1016/j.biotechadv.2013.09.008

Cited by 26 publications

(21 citation statements)

References 217 publications

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“…The genes that regulate response to short photoperiod are mostly described for A. thaliana and rice, but little is known about how temperate cereals (wheat, barley, rye, oat and triticale) respond to SD (Milec et al . ; Shrestha et al . ; Chen & Dubcovsky ; Higgins et al .…”

Section: Introductionmentioning

confidence: 99%

The identification of new candidate genes Triticum aestivumFLOWERING LOCUS T3‐B1 (TaFT3‐B1) and TARGET OF EAT1 (TaTOE1‐B1) controlling the short‐day photoperiod response in bread wheat

Zikhali

Wingen

Leverington-Waite

et al. 2017

Plant Cell & Environment

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Perception of photoperiod changes enables plants to flower under optimum conditions for survival. We used doubled haploid populations of crosses among Avalon × Cadenza, Charger × Badger and Spark × Rialto and identified short‐day flowering time response quantitative trait loci (QTL) on wheat chromosomes 1BS and 1BL. We used synteny between Brachypodium distachyon and wheat to identify potential candidates for both QTL. The 1BL QTL peak coincided with TaFT3‐B1, a homologue of the barley gene HvFT3, the most likely candidate gene. The 1BS QTL peak coincided with homologues of Arabidopsis thaliana S ENSITIVITY TO R ED LIGHT R EDUCED 1, WUSCHEL‐like and RAP2.7, which is also known as Zea mays TARGET OF EAT1, named TaSRR1‐B1, TaWUSCHELL‐B1 and TaTOE1‐B1, respectively. Gene expression assays suggest that TaTOE1‐B1 and TaFT3‐B1 are expressed more during short days. We identified four alleles of TaFT3‐B1 and three alleles of TaTOE1‐B1. We studied the effect of these alleles in the Watkins and GEDIFLUX diversity panels by using 936 and 431 accessions, respectively. Loss of TaFT3‐B1 by deletion was associated with late flowering. Increased TaFT3‐B1 copy number was associated with early flowering, suggesting that TaFT3‐B1 promotes flowering. Significant association was observed in the GEDIFLUX collection for TaTOE1‐B1, a putative flowering repressor.

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Section: Introductionmentioning

confidence: 99%

The identification of new candidate genes Triticum aestivumFLOWERING LOCUS T3‐B1 (TaFT3‐B1) and TARGET OF EAT1 (TaTOE1‐B1) controlling the short‐day photoperiod response in bread wheat

Zikhali

Wingen

Leverington-Waite

et al. 2017

Plant Cell & Environment

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“…Thus, flowering time is an important trait that influences the yield of harvestable fruits and seeds (Milec et al . ). For fruit and cereal crops, yield is largely dependent on the proper onset of flowering.…”

Section: Photomorphogenic Phenotypes For Crop Improvementmentioning

confidence: 97%

“…By delaying the switch from the vegetative to the reproductive phase, a plant is forced to remain in the vegetative phase, and this results in greater resource allocation to vegetative growth. Thus, flowering time is an important trait that influences the yield of harvestable fruits and seeds (Milec et al 2014). For fruit and cereal crops, yield is largely dependent on the proper onset of flowering.…”

Section: Flowering Timementioning

confidence: 99%

Development of transgenic crops based on photo‐biotechnology

Ganesan

Lee

Kim

et al. 2017

Plant Cell & Environment

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The phenotypes associated with plant photomorphogenesis such as the suppressed shade avoidance response and de-etiolation offer the potential for significant enhancement of crop yields. Of many light signal transducers and transcription factors involved in the photomorphogenic responses of plants, this review focuses on the transgenic overexpression of the photoreceptor genes at the uppermost stream of the signalling events, particularly phytochromes, crytochromes and phototropins as the transgenes for the genetic engineering of crops with improved harvest yields. In promoting the harvest yields of crops, the photoreceptors mediate the light regulation of photosynthetically important genes, and the improved yields often come with the tolerance to abiotic stresses such as drought, salinity and heavy metal ions. As a genetic engineering approach, the term photo-biotechnology has been coined to convey the idea that the greater the photosynthetic efficiency that crop plants can be engineered to possess, the stronger the resistance to biotic and abiotic stresses. Development of GM crops based on photoreceptor transgenes (mainly phytochromes, crytochromes and phototropins) is reviewed with the proposal of photo-biotechnology that the photoreceptors mediate the light regulation of photosynthetically important genes, and the improved yields often come with the added benefits of crops' tolerance to environmental stresses.

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“…Establishing the correct timing for this transition is essential to determine reproductive success. The molecular mechanisms implicated in the control of flowering time have been most extensively studied in Arabidopsis and classically divided in four main pathways: vernalization, photoperiodic, autonomous, and gibberellin (Ream et al 2012;Milec et al 2014;Andres and Coupland 2012;Mouradov et al 2002). Particularly, the circadian clock plays a major role in the regulation of photoperiodic flowering pathway, acting as an internal mechanism able to discriminate the duration of the day.…”

Section: Floral Transitionmentioning

confidence: 99%

ABA Signaling and Circadian Clock

Portolés

Zhang

2014

Abscisic Acid: Metabolism, Transport and Signaling

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The circadian clock is an endogenous timing mechanism that controls a variety of physiological, metabolic, and developmental process. It serves as a timekeeper allowing the organisms to predict recurrent environmental variations, ensuring that the onset of key processes coincides with appropriate conditions. In plants, the use of genome-wide approaches revealed that clock-regulated genes are overrepresented in several plant hormones and stress-responsive pathways, especially those related with abscisic acid (ABA). Concretely, the circadian clock controls the daily fluctuations in ABA concentration and modulates plant sensitivity to this hormone in a process called gating. In turn, changes in ABA levels due to stressful conditions feed back the clock by modifying its pace. Emerging findings have proven that ABA and circadian clock reciprocal regulation is essential to integrate internal and external cues to properly adjust key physiology and development processes such as flowering transition, seed dormancy and germination, and abiotic and biotic stress responses. This mutual regulation is crucial for plant fitness and survival as allows to anticipate and precisely respond to predictable stressful conditions.

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Can a late bloomer become an early bird? Tools for flowering time adjustment

Cited by 26 publications

References 217 publications

The identification of new candidate genes Triticum aestivumFLOWERING LOCUS T3‐B1 (TaFT3‐B1) and TARGET OF EAT1 (TaTOE1‐B1) controlling the short‐day photoperiod response in bread wheat

The identification of new candidate genes Triticum aestivumFLOWERING LOCUS T3‐B1 (TaFT3‐B1) and TARGET OF EAT1 (TaTOE1‐B1) controlling the short‐day photoperiod response in bread wheat

Development of transgenic crops based on photo‐biotechnology

ABA Signaling and Circadian Clock

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