ArticleInternational journal of molecular sciences2022
Effect of Heading Date on the Starch Structure and Grain Yield of Rice Lines with Low Gelatinization Temperature.
Article in International journal of molecular sciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 6 citations in OpenAlex.
- Haplotype Analysis of the Wx and SSIIa Genes and Their Association with Starch Physicochemical Properties in Diverse Rice Germplasm.Molecular biotechnology · 2026Review
- Development of Whole-Grain Rice Lines Exhibiting Low and Intermediate Glycemic Index with Decreased Amylose Content.Foods (Basel, Switzerland) · 2024Article
- Effects of different cold-resistant agents and application methods on yield and cold-resistance of machine-transplanted early rice.Frontiers in plant science · 2024Article
- Relationship between Physicochemical and Cooking Quality Parameters with Estimated Glycaemic Index of Rice Varieties.Foods (Basel, Switzerland) · 2023Article
- Molecular Research for Cereal Grain Quality.International journal of molecular sciences · 2023Article
- ThreeInternational journal of molecular sciences · 2023Article
- Powering Genome Editing in Rice by Harnessing Promising Gene Resources: A Comprehensive Roadmap.Physiologia plantarumReview
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
Abstract
Early flowering trait is essential for rice cultivars grown at high latitude since delayed flowering leads to seed development at low temperature, which decreases yield. However, early flowering at high temperature promotes the formation of chalky seeds with low apparent amylose content and high starch gelatinization temperature, thus affecting grain quality. Deletion of starch synthase IIa (SSIIa) shows inverse effects of high temperature, and the ss2a mutant shows higher apparent amylose content and lower gelatinization temperature. Heading date 1 (Hd1) is the major regulator of flowering time, and a nonfunctional hd1 allele is required for early flowering. To understand the relationship among heading date, starch properties, and yield, we generated and characterized near-isogenic rice lines with ss2a Hd1, ss2a Hd1 hd1, and ss2a hd1 genotypes. The ss2a Hd1 line showed the highest plant biomass; however, its grain yield varied by year. The ss2a Hd1 hd1 showed higher total grain weight than ss2a hd1. The ss2a hd1 line produced the lowest number of premature seeds and showed higher gelatinization temperature and lower apparent amylose content than ss2a Hd1. These results highlight Hd1 as the candidate gene for developing high-yielding rice cultivars with the desired starch structure.
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Registered trials
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