ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2015
Fine-mapping and validating qHTSF4.1 to increase spikelet fertility under heat stress at flowering in rice.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.
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Who cites it
24 citing papers in PubMed, 80 citations in OpenAlex.
- Single-Cell and Spatial Omics Technologies in Rice Abiotic Stress Biology: A Methodological Review.International journal of molecular sciences · 2026Review
- The Floral Bottleneck in a Changing Climate: Molecular Mechanisms, Knowledge Gaps, and Future Directions.International journal of molecular sciences · 2026Review
- Heat stress impact on rice reproductive processes: challenges and new approaches.Frontiers in genome editing · 2026Review
- Decrypting molecular mechanism of heat stress tolerance in rice to tackle climate change challenges through recent approaches.Frontiers in plant science · 2025Review
- Introgression among subgroups is an important driving force for genetic improvement and evolution of the Asian cultivated riceFrontiers in plant science · 2025Review
- How Rice Responds to Temperature Changes and Defeats Heat Stress.Rice (New York, N.Y.) · 2024Review
- Time-Series Transcriptomic Analysis of Contrasting Rice Materials under Heat Stress Reveals a Faster Response in the Tolerant Cultivar.International journal of molecular sciences · 2023Article
- Genetic Research Progress: Heat Tolerance in Rice.International journal of molecular sciences · 2023Review
- How rice adapts to high temperatures.Frontiers in plant science · 2023Review
- Article
- Natural variation of HTH5 from wild rice, Oryza rufipogon Griff., is involved in conferring high-temperature tolerance at the heading stage.Plant biotechnology journal · 2022Article
- Marker-assisted pyramiding of QTLs for heat tolerance and escape upgrades heat resilience in rice (Oryza sativa L.).TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2022Article
- Sugar metabolism during pre- and post-fertilization events in plants under high temperature stress.Plant cell reports · 2022Review
- Genome-Wide Association Mapping Reveals Novel Putative Gene Candidates Governing Reproductive Stage Heat Stress Tolerance in Rice.Frontiers in genetics · 2022Article
- QTL mapping and identification of candidate genes using a genome-wide association study for heat tolerance at anthesis in rice (Frontiers in genetics · 2022Article
- Reproductive tissues-specific meta-QTLs and candidate genes for development of heat-tolerant rice cultivars.Plant molecular biology · 2020Article
- Dynamic Transcriptome Analysis of Anther Response to Heat Stress during Anthesis in Thermotolerant Rice (International journal of molecular sciences · 2020Article
- QTL Mapping and Identification of Candidate Genes for Heat Tolerance at the Flowering Stage in Rice.Frontiers in genetics · 2020Article
- IR64: a high-quality and high-yielding mega variety.Rice (New York, N.Y.) · 2018Review
- Heat Stress Tolerance in Rice (Frontiers in plant science · 2018Article
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Authors and funding
7 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
key messageThis study fine mapped and validated a QTL on rice chromosome 4 that increases spikelet fertility under high temperature (over 37 °C) at the flowering stage. Climate change has a negative effect on crop production and food security. Understanding the genetic mechanism of heat tolerance and developing heat-tolerant varieties is essential to cope with future global warming. Previously, we reported on a QTL (qHTSF4.1) from an IR64/N22 population responsible for rice spikelet fertility under high-temperature stress at the flowering stage. To further fine map and validate the effect of qHTSF4.1, PCR-based SNP markers were developed and used to genotype BC2F2, BC3F2, BC3F3, and BC5F2 populations from the same cross. The interval of the QTL was narrowed down to about 1.2 Mb; however, further recombination was not identified even with a large BC5F2 population that was subsequently developed and screened. The sequence in the QTL region is highly conserved and a large number of genes in the same gene family were observed to be clustered in the region. The QTL qHTSF4.1 consistently increased spikelet fertility in all of the backcross populations. This was confirmed using 24 rice varieties. Most of the rice varieties with the QTL showed a certain degree of heat tolerance under high-temperature conditions. In a BC5F2 population with clean background of IR64, QTL qHTSF4.1 increased spikelet fertility by about 15%. It could be an important source for enhancing heat tolerance in rice at the flowering stage. PCR-based SNP markers developed in this study can be used for QTL introgression and for pyramiding with other agronomically important QTLs/genes through marker-assisted selection.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.