ArticleBMC plant biology2023
Utilization of natural alleles for heat adaptability QTLs at the flowering stage in rice.
Article in BMC plant biology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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4 citing papers in PubMed, 10 citations in OpenAlex.
- Genetic and Molecular Basis for Heat Tolerance in Rice: Strategies for Resilience Under Climate Change.Plants (Basel, Switzerland) · 2025Review
- Identifying Heat Adaptability QTLs and Candidate Genes for Grain Appearance Quality at the Flowering Stage in Rice.Rice (New York, N.Y.) · 2025Article
- Morphological, Physiological, and Molecular Responses to Heat Stress in Brassicaceae.Plants (Basel, Switzerland) · 2025Review
- Decrypting molecular mechanism of heat stress tolerance in rice to tackle climate change challenges through recent approaches.Frontiers in plant science · 2025Review
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Authors and funding
12 authors at 5 institutions in 2 countries.
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Abstract
backgroundHeat stress threatens rice yield and quality at flowering stage. In this study, average relative seed setting rate under heat stress (RHSR) and genotypes of 284 varieties were used for a genome-wide association study.
resultsWe identified eight and six QTLs distributed on chromosomes 1, 3, 4, 5, 7 and 12 in the full population and indica, respectively. qHTT4.2 was detected in both the full population and indica as an overlapping QTL. RHSR was positively correlated with the accumulation of heat-tolerant superior alleles (SA), and indica accession contained at least two heat-tolerant SA with average RHSR greater than 43%, meeting the needs of stable production and heat-tolerant QTLs were offer yield basic for chalkiness degree, amylose content, gel consistency and gelatinization temperature. Chalkiness degree, amylose content, and gelatinization temperature under heat stress increased with accumulation of heat-tolerant SA. Gel consistency under heat stress decreased with polymerization of heat-tolerant SA. The study revealed qHTT4.2 as a stable heat-tolerant QTL that can be used for breeding that was detected in the full population and indica. And the grain quality of qHTT4.2-haplotype1 (Hap1) with chalk5, wx, and alk was better than that of qHTT4.2-Hap1 with CHALK5, WX, and ALK. Twelve putative candidate genes were identified for qHTT4.2 that enhance RHSR based on gene expression data and these genes were validated in two groups. Candidate genes LOC_Os04g52830 and LOC_Os04g52870 were induced by high temperature.
conclusionsOur findings identify strong heat-tolerant cultivars and heat-tolerant QTLs with great potential value to improve rice tolerance to heat stress, and suggest a strategy for the breeding of yield-balance-quality heat-tolerant crop varieties.
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