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Current Status and Future Direction of the High-Temperature Resistance in Wheat to Control Stripe Rust
Xinqian Lyu1, Guocheng Li1, Chang Su2
1State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan and College of Plant Protection, Yunnan Agricultural University, Kunming, Yunnan, China.
Molecular Plant Pathology
|December 18, 2025
Summary
Wheat high-temperature resistance against stripe rust is crucial for durable crop control. Advances in understanding high-temperature adult-plant (HTAP) and all-stage (HTAS) resistance mechanisms offer new breeding strategies.
Area of Science:
- Plant pathology
- Agronomy
- Genetics
Background:
- Stripe rust, caused by Puccinia striiformis f. sp. tritici (Pst), poses a significant threat to wheat production worldwide.
- High-temperature resistance, encompassing high-temperature adult-plant (HTAP) and high-temperature all-stage (HTAS) resistance, is vital for effective and durable wheat disease management.
- Understanding these resistance mechanisms is key to developing resilient wheat varieties.
Purpose of the Study:
- To review current advancements in wheat high-temperature resistance against stripe rust.
- To explore future research perspectives and breeding applications for enhancing wheat resilience.
- To summarize the genetic and molecular mechanisms underlying HTAP and HTAS resistance.
Main Methods:
- Genetic mapping to identify resistance genes and quantitative trait loci (QTLs).
- Analysis of cloned resistance genes (e.g., Yr18, Yr36, Yr46) and their associated mechanisms.
- Review of identified defense-related factors for HTAS resistance and Pst effector functions.
Main Results:
- Numerous HTAP-resistance genes and QTLs have been mapped, particularly in the B subgenome.
- Cloned genes reveal mechanisms including cell necrosis, photosynthesis modulation, and nutrient transport.
- Limited progress in identifying usable genes/QTLs for HTAS resistance, with Pst effectors identified as suppressors of host defense.
Conclusions:
- Future research should prioritize novel gene discovery, deciphering regulatory networks, and investigating effector-host interactions.
- Breeding applications using marker-assisted selection and gene editing hold promise for developing high-temperature resistant wheat.
- Integrated strategies are needed to overcome Pst virulence and ensure sustainable wheat production.
