Tomato plant response to heat stress: a focus on candidate genes for yield-related traits

Frontiers in Plant Science, Journal Year: 2024, Volume and Issue: 14

Published: Jan. 8, 2024

Climate change and global warming represent the main threats for many agricultural crops. Tomato is one of most extensively grown consumed horticultural products can survive in a wide range climatic conditions. However, high temperatures negatively affect both vegetative growth reproductive processes, resulting losses yield fruit quality traits. Researchers have employed different parameters to evaluate heat stress tolerance, including evaluation leaf- (stomatal conductance, net photosynthetic rate, Fv/Fm), flower- (inflorescence number, flower stigma exertion), pollen-related traits (pollen germination viability, pollen tube growth) per plant. Moreover, several authors gone even further, trying understand plants molecular response mechanisms this stress. The present review focused on tomato during stage, since increase above optimum usually occurs late growing season. Reproductive-related directly affects final are regulated by genes such as transcriptional factors, shock proteins, related flower, flowering, set, epigenetic involving DNA methylation, histone modification, chromatin remodelling non-coding RNAs. We provided detailed list these their function under temperature conditions defining with aim summarize recent findings pose attention candidate that could prompt selection constitution new thermotolerant plant genotypes able face abiotic challenge.

Language: Английский

---

Epigenetics for Crop Improvement in Times of Global Change

Biology, Journal Year: 2021, Volume and Issue: 10(8), P. 766 - 766

Published: Aug. 11, 2021

Epigenetics has emerged as an important research field for crop improvement under the on-going climatic changes. Heritable epigenetic changes can arise independently of DNA sequence alterations and have been associated with altered gene expression transmitted phenotypic variation. By modulating plant development physiological responses to environmental conditions, diversity—naturally, genetically, chemically, or environmentally induced—can help optimise traits in era challenged by global climate change. Beyond variation, modifications may contribute breeding providing useful markers allowing use epigenome diversity predict performance increase final production. Given difficulties transferring knowledge mechanisms from model plants crops, various strategies emerged. Among those are modelling frameworks dedicated predicting epigenetically controlled-adaptive traits, epigenetics vitro regeneration accelerate breeding, specific marks that modulate interest. The key challenge agriculture faces 21st century is production speeding up resilient species. Therefore, provides fundamental molecular information potential direct applications enhancement, tolerance, adaptation within context

Language: Английский

---

Responses to Drought Stress in Poplar: What Do We Know and What Can We Learn?

Life, Journal Year: 2023, Volume and Issue: 13(2), P. 533 - 533

Published: Feb. 15, 2023

Poplar (Populus spp.) is a high-value crop for wood and biomass production model organism tree physiology genomics. The early release, in 2006, of the complete genome sequence P. trichocarpa was followed by wealth studies that significantly enriched our knowledge complex pathways inherent to woody plants, such as lignin biosynthesis secondary cell wall deposition. Recently, attempt cope with challenges posed ongoing climate change, fundamental breeding programs poplar have gradually shifted their focus address responses abiotic stresses, particularly drought. Taking advantage from set modern genomic phenotyping tools, these are now shedding light on important processes, including embolism formation (the entry expansion air bubbles xylem) repair, impact drought stress yield quality, long-term effects events. In this review, we summarize status research molecular bases poplar. We highlight how can be exploited select more tolerant genotypes it translated other species improve understanding forest dynamics under rapidly changing environmental conditions.

Language: Английский

---

Adaptation Mechanisms of Olive Tree under Drought Stress: The Potential of Modern Omics Approaches

Agriculture, Journal Year: 2024, Volume and Issue: 14(4), P. 579 - 579

Published: April 5, 2024

Olive (Olea europaea L.) is a crop of enormous economic and cultural importance. Over the years, worldwide production olive oil has been decreasing due to various biotic abiotic factors. The current drop in resulting from climate change raises concerns regarding fulfillment our daily demand for led significant increase market prices. In future, there will be higher chance that we face severe shortage oil, which could harm both sector food supply. As groves cover more than 5 million hectares European Union alone, need preserve context extreme climatic events imperative. drought considered one most limiting factors agriculture, drought-resistant varieties sustainable irrigation strategies are being developed mitigate impact on productivity secure future supply oil. This review focuses recently gained insights into stress trees through omics phenomics approaches unravelling mechanisms may lead developing new tolerant against elicited by changes growing systems.

Language: Английский

---

Extrachromosomal circular DNA: A neglected nucleic acid molecule in plants

Current Opinion in Plant Biology, Journal Year: 2022, Volume and Issue: 69, P. 102263 - 102263

Published: July 21, 2022

Language: Английский

---

Epigenomics in stress tolerance of plants under the climate change

Molecular Biology Reports, Journal Year: 2023, Volume and Issue: 50(7), P. 6201 - 6216

Published: June 9, 2023

Language: Английский

---

DNA methylation: an emerging paradigm of gene regulation under drought stress in plants

Molecular Biology Reports, Journal Year: 2024, Volume and Issue: 51(1)

Published: Feb. 19, 2024

Language: Английский

---

Epigenomic and transcriptomic persistence of heat stress memory in strawberry (Fragaria vesca)

BMC Plant Biology, Journal Year: 2024, Volume and Issue: 24(1)

Published: May 16, 2024

Abstract Background In plants, epigenetic stress memory has so far been found to be largely transient. Here, we wanted assess the heritability of heat stress-induced and transcriptomic changes following woodland strawberry ( Fragaria vesca ) reproduction. Strawberry is an ideal model study inheritance because it presents two modes reproduction: sexual (self-pollinated plants) asexual (clonally propagated plants named daughter plants). Taking advantage this model, investigated whether DNA methylation can transmitted via Results Our genome-wide provides evidence for acquisition maintenance in F. . We that specific marks or epimutations are stably over at least three generations. Some were associated with transcriptional after stress. Conclusion findings show methylome transcriptome respond a high level flexibility Notably, independent acquired same those inherited by their progenies. Overall, progenies retain some information genome past stresses encountered progenitors. This molecular memory, also documented level, might involved functional plasticity adaptation. Finally, these may contribute novel breeding approaches climate-ready plants.

Language: Английский

---

Epigenetic Modifications of Hormonal Signaling Pathways in Plant Drought Response and Tolerance for Sustainable Food Security

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(15), P. 8229 - 8229

Published: July 28, 2024

Drought significantly challenges global food security, necessitating a comprehensive understanding of plant molecular responses for effective mitigation strategies. Epigenetic modifications, such as DNA methylation and histone are key in regulating genes hormones essential drought response. While microRNAs (miRNAs) primarily regulate gene expression post-transcriptionally, they can also interact with epigenetic pathways potential effectors that influence chromatin remodeling. Although the role miRNAs memory is still being explored, their contribution to response requires examining these indirect effects on modifications. A aspect this exploration drought-adapted plants, offering insights into transgenerational inheritance adaptive traits. Understanding mechanisms govern maintenance erasure imprints provides nuanced how plants balance stability flexibility epigenomes. major focus dynamic interaction between hormonal pathways—such those abscisic acid (ABA), ethylene, jasmonates, salicylic (SA)—and mechanisms. This interplay crucial fine-tuning during stress, leading physiological morphological adaptations enhance resilience. review highlights transformative advanced technologies, bisulfite sequencing CRISPR-Cas9, providing water deficit conditions. These technologies pave way developing drought-tolerant crops, which vital sustainable agriculture.

Language: Английский

---

The pattern of alternative splicing and DNA methylation alteration and their interaction in linseed (Linum usitatissimum L.) response to repeated drought stresses

Biological Research, Journal Year: 2023, Volume and Issue: 56(1)

Published: March 16, 2023

Drought stress has significantly hampered agricultural productivity worldwide and can also result in modifications to DNA methylation levels. However, the dynamics of its association with changes gene transcription alternative splicing (AS) under drought are unknown linseed, which is frequently cultivated arid semiarid regions.We analysed AS events patterns drought-tolerant (Z141) drought-sensitive (NY-17) linseed (DS) repeated (RD) treatments. We found that number intron-retention (IR) 3' splice site (Alt3'SS) were higher Z141 NY-17 stress. response DS treatment was mainly regulated by transcription, while RD coregulated AS. Whole genome-wide analysis revealed caused an increase overall level linseed. Although we did not observe any correlation between differentially methylated genes (DMGs) spliced (DSGs) this study, DSGs whose body region hypermethylated hypomethylated enriched abiotic Gene Ontology (GO) terms. This finding implies plays important role regulation some specific genes.Our study first comprehensive relationship Our different interaction expressed (DEGs) treatments differences varieties. The findings will probably be interest future. results provide interesting insights into expression, AS, Differences these associations may account for tolerance.

Language: Английский

---