Comparative analysis of waterlogging and drought stress regulatory networks in barley (Hordeum vulgare)

Functional Plant Biology, Journal Year: 2025, Volume and Issue: 52(3)

Published: Feb. 16, 2025

We applied a systems biology approach to gain deep insight into the regulatory mechanisms of barley (Hordeum vulgare) under drought and waterlogging stress conditions. To identify informative models related conditions, we constructed meta-analysis two distinct weighted gene co-expression networks. then performed module trait association analyses. Additionally, conducted functional enrichment analysis significant modules shed light on biological performance underlying genes in contrasting stresses. In next step, inferred networks between top hub modules, kinases, transcription factors (TFs) using machine learning algorithm. Our results showed that at power = 10, scale-free topology fitting index (R2) was higher than 0.8 connectivity mean became stable. identified 31 co-expressed barley, with 13 14 demonstrating associations stress, respectively. Functional indicated these stress-responsive are involved critical processes, including ADP-rybosylation (ARF) protein signal transduction, ethylene-induced autophagy, phosphoric ester hydrolase activity. Specific TFs such as C2C2-GATA, HB-BELL, MADS-MIKC, were key regulators Furthermore, certain kinases established unique connections response These findings enhance our understanding molecular modulate barley’s stresses, offering insights essential for adaptation.

Language: Английский

---

From Stress to Success: Strategies for Improving Heat Tolerance in Wheat

Journal of Agronomy and Crop Science, Journal Year: 2025, Volume and Issue: 211(3)

Published: April 7, 2025

ABSTRACT Wheat, a major staple crop, is critical for global food security. However, abiotic stresses, particularly heat stress, threaten crop productivity. With climate change predicted to increase temperatures by around 1.5°C 2050, productivity could be severely affected. Given ongoing hunger‐related challenges and the growing population, developing varieties with improved tolerance stresses essential. Plant breeders have long used natural stress of crops, selectively breeding cultivars capable thriving in adverse conditions. Molecular tools further advanced this success, allowing identifying manipulating genes associated tolerance. Combining traditional methods innovative biotechnological has shown promising results stress‐resilient varieties. As technology continues evolve, policy interventions may become more affordable, enabling precise responses posed change. Wheat's capacity withstand influenced both phylogenetic environmental factors, as revealed quantitative trait locus mapping genome‐wide association studies. Recently, omics technologies—such genomics, transcriptomics, metabolomics, proteomics, phenomics, ionomics—have provided valuable insights into complex interactions between proteins, metabolites, that govern wheat phenotype. These approaches, supported computational bioinformatics, enable comprehensive understanding biological processes, aiding improvement Despite advancements, there remains lack in‐depth studies on precision wheat. This review seeks address gap examining various morphological, physiological, cellular, molecular adaptation mechanisms improve

Language: Английский

---

Dissecting the effect of heat stress on durum wheat under field conditions

Frontiers in Plant Science, Journal Year: 2024, Volume and Issue: 15

Published: June 28, 2024

Introduction Heat stress negatively affects wheat production in several ways, mainly by reducing growth rate, photosynthetic capacity and spike fertility. Modeling response means analyzing simultaneous relationships among traits affecting the whole plant determinants of grain yield. The aim this study was to dissect diverse impacts heat on key yield identify most promising sources alleles for tolerance. Methods We evaluated a durum panel 183 cultivars breeding lines from worldwide, their long-term under field conditions (HS) with respect non (NS), considering phenological traits, (GY) its components as function timing climatic covariates. investigated environmental variables structural equation model (SEM) Genetic SEM (GSEM). Results Over two years experiments at CENEB, CIMMYT, effects HS were particularly pronounced normalized difference vegetation index, NDVI (-51.3%), kernel weight per spike, KWS (-40.5%), filling period, GFP (-38.7%), GY (-56.6%). Average temperatures around anthesis correlated GY, thousand TKW test TWT, but also density, trait determined before heading/anthesis. Under HS, correlation between three major i.e., fertile fertility size, noticeable magnitude. measured medium milk-soft dough stage both while NS it less predictive still highly GSEM modeling suggested that causal performance directly involves genetic NDVI, HD. Discussion identified consistently suitable resistance be used different pre-breeding programs. Among those, Desert Durums CIMMYT’80 germplasm showed highest degree adaptation high can considered valuable source breed new resilient cultivars.

Language: Английский

---

Under Stress: Searching for Genes Involved in the Response of Abies pinsapo Boiss to Climate Change

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(9), P. 4820 - 4820

Published: April 28, 2024

Currently, Mediterranean forests are experiencing the deleterious effects of global warming, which mainly include increased temperatures and decreased precipitation in region. Relict Abies pinsapo fir forests, endemic southern Iberian Peninsula, especially sensitive to these recent environmental disturbances, identifying genes involved response this endangered tree species climate-driven stresses is paramount importance for mitigating their effects. Genomic resources A. allow analysis candidate reacting warming aridity natural habitats. Several members complex gene families encoding late embryogenesis abundant proteins (LEAs) heat shock (HSPs) have been found exhibit differential expression patterns between wet dry seasons when samples from distinct geographical locations dissimilar exposures climate change were analyzed. The observed changes more perceptible roots trees, particularly declining distributed at lower altitudes vulnerable mountains. These findings align with previous studies lay groundwork further research on molecular level. Molecular genomic approaches offer valuable insights stress safeguarding conifer.

Language: Английский

---

Transcriptome analysis for heat stress related genes in wheat genotype WH-730

Cereal Research Communications, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 16, 2024

Language: Английский

---