Plant clock modifications for adapting flowering time to local environments

PLANT PHYSIOLOGY, Год журнала: 2022, Номер 190(2), С. 952 - 967

Опубликована: Март 9, 2022

During and after the domestication of crops from ancestral wild plants, humans selected cultivars that could change their flowering time in response to seasonal daylength. Continuous selection this trait eventually allowed introduction into higher or lower latitudes different climates original regions where initiated. In past two decades, numerous studies have found causal genes alleles assisted adapting crop species such as barley (Hordeum vulgare), wheat (Triticum aestivum L.), rice (Oryza sativa pea (Pisum sativum maize (Zea mays spp. mays), soybean (Glycine max (L.) Merr.) new environments. This updated review summarizes contributed adaptation climatic areas. Many these are putative orthologs Arabidopsis (Arabidopsis thaliana) core clock genes. We also discuss how knowledge clock's molecular functioning can facilitate breeding future.

Язык: Английский

---

From crops to shops: how agriculture can use circadian clocks

Journal of Experimental Botany, Год журнала: 2021, Номер 72(22), С. 7668 - 7679

Опубликована: Авг. 6, 2021

Knowledge about environmental and biological rhythms can lead to more sustainable agriculture in a climate crisis resource scarcity scenario. When are considered, efficient cost-effective management practices be designed for food production. The circadian clock is used anticipate daily seasonal changes, organize the metabolism during day, integrate internal external signals, optimize interaction with other organisms. Plants synchrony environment productive use fewer resources. In medicine, chronotherapy increase drug efficacy, reduce toxicity, understand health effects of disruption. Here, I show evidence why biology helpful agriculture. However, as scattered among many areas, they frequently lack field testing, poorly rhythms, or suffer inconsistent results. These problems mitigated if researchers different areas start collaborating under new study area-circadian

Язык: Английский

---

Wheat EARLY FLOWERING 3 affects heading date without disrupting circadian oscillations

PLANT PHYSIOLOGY, Год журнала: 2022, Номер 191(2), С. 1383 - 1403

Опубликована: Дек. 1, 2022

Abstract Plant breeders have indirectly selected for variation at circadian-associated loci in many of the world's major crops, when breeding to increase yield and improve crop performance. Using an eight-parent Multiparent Advanced Generation Inter-Cross (MAGIC) population, we investigated how circadian clock-associated genes contributes regulation heading date UK European winter wheat (Triticum aestivum) varieties. We identified homoeologues EARLY FLOWERING 3 (ELF3) as candidates Earliness per se (Eps) D1 B1 under field conditions. then confirmed a single-nucleotide polymorphism within coding region TaELF3-B1 candidate underlying Eps-B1 locus. found that reported deletion Eps-D1 locus encompassing TaELF3-D1 is, instead, allele lies introgression containing inversion relative Chinese Spring D genome. Triticum turgidum cv. Kronos carrying loss-of-function alleles TtELF3, showed ELF3 regulates heading, with loss single homoeologue sufficient alter date. These studies demonstrated forms part oscillator; however, all was required affect rhythms. Similarly, functional LUX ARRHYTHMO (LUX) T. aestivum, orthologue protein partner Arabidopsis (Arabidopsis thaliana) ELF3, severely disrupted transcripts are not co-expressed dusk, suggesting structure oscillator might differ from Arabidopsis. Our demonstration alterations can separately effects on suggests role cereal photoperiodic responses could be without pleiotropic deleterious

Язык: Английский

---

Two central circadian oscillators OsPRR59 and OsPRR95 modulate magnesium homeostasis and carbon fixation in rice

Molecular Plant, Год журнала: 2022, Номер 15(10), С. 1602 - 1614

Опубликована: Сен. 16, 2022

Photosynthesis, which provides oxygen and energy for all living organisms, is circadian regulated. Photosynthesis-associated metabolism must tightly coordinate with the clock to maximize efficiency of light-energy capture carbon fixation. However, molecular basis interplay photosynthesis not fully understood, particularly in crop plants. Here, we report two central oscillator genes clock, OsPRR95 OsPRR59 rice, function as transcriptional repressors negatively regulate rhythmic expression OsMGT3 encoding a chloroplast-localized Mg2+ transporter. OsMGT3-dependent Mg fluctuations modulate fixation consequent sugar output rice chloroplasts. Furthermore, triggers increase superoxide, may act feedback signal positively OsPRR59. Taken together, our results reveal negative-feedback loop that strengthens crosstalk between photosynthetic improve plan adaptation performance fluctuating environments.

Язык: Английский

---

Genome-wide circadian gating of a cold temperature response in bread wheat

PLoS Genetics, Год журнала: 2023, Номер 19(9), С. e1010947 - e1010947

Опубликована: Сен. 18, 2023

Circadian rhythms coordinate the responses of organisms with their daily fluctuating environments, by establishing a temporal program gene expression. This schedules aspects metabolism, physiology, development and behaviour according to time day. regulation in plants is extremely pervasive, important because it underpins both productivity seasonal reproduction. extends control environmental through regulatory process known as circadian gating. gating whereby clock regulates response an cue, such that magnitude identical cue varies day cue. Here, we show there genome-wide cold temperatures plants. By using bread wheat experimental model, establish crucial programs expression underlie crop major socioeconomic importance. Furthermore, identify temperature are distributed unevenly across three subgenomes, which might reflect geographical origins ancestors modern wheat.

Язык: Английский

---