ArticleProceedings of the National Academy of Sciences of the United States of America2012
Genetic composition of yield heterosis in an elite rice hybrid.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 125 papers.
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Who cites it
125 citing papers in PubMed.
- Genetic Dissection of Wheat Heterosis Identifies Candidate Genes in Biparental and Diverse Hybrid Populations.Plant biotechnology journal · 2026Article
- Innovations in hybrid rice seed production: Integrating agronomy, mechanization, and biotechnology.Plant communications · 2026Review
- Genetic analysis of biomass yield and related traits for hybrid cultivar development in the leafy vegetable Gynandropsis gynandra (L.) Briq.BMC plant biology · 2026Article
- Quantitative trait loci mapping of heterosis for leaf morphological traits and candidate gene identification in maize.BMC plant biology · 2026Article
- 24-nt-phasiRNA associated CHG/CHH DNA methylation contributes to growth heterosis ofForestry research · 2026Article
- Integrating Multi-omics Analysis to Decipher the Genetic Basis of Heterosis in Xieyou9308.Rice (New York, N.Y.) · 2025Article
- Quantitative Insights into the Genetic Mechanisms of Crop Heterosis.Advanced genetics (Hoboken, N.J.) · 2025Review
- Molecular and physiological basis of heterosis in hybrid rice performance.Molecular breeding : new strategies in plant improvement · 2025Review
- GWAS-based population genetic analysis identifies bZIP29 as a heterotic gene in maize.Plant communications · 2025Article
- Accelerating eucalypt clone selection pipeline via cloned progeny trials and molecular data.Plant methods · 2025Article
- The Role of Hybrid Varieties in Enhancing Crop Productivity and Sustainability in Nepalese Agriculture.Scientifica · 2025Review
- Combining ability and heterosis analysis for mineral content in the leafy vegetable Gynandropsis gynandra (L.) Briq.PloS one · 2025Article
- The analysis of the genetic loci affecting phenotypic plasticity of soybean isoflavone content by dQTG.seq model.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2024Article
- Unlocking the mystery of heterosis opens the era of intelligent rice breeding.Plant physiology · 2024Review
- Exploring the Genetic Basis ofCurrent issues in molecular biology · 2024Article
- Origins of Susceptibility to Insect Herbivores in High-Yielding Hybrid and Inbred Rice Genotypes.Insects · 2024Article
- The genetic basis and process of inbreeding depression in an elite hybrid rice.Science China. Life sciences · 2024Article
- Heterosis for Interactions between Insect Herbivores and 3-Line Hybrid Rice under Low and High Soil Nitrogen Conditions.Insects · 2024Article
- A higher-yield hybrid rice is achieved by assimilating a dominant heterotic gene in inbred parental lines.Plant biotechnology journal · 2024Article
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9 authors.
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Abstract
Heterosis refers to the superior performance of hybrids relative to the parents. Utilization of heterosis has contributed tremendously to the increased productivity in many crops for decades. Although there have been a range of studies on various aspects of heterosis, the key to understanding the biological mechanisms of heterotic performance in crop hybrids is the genetic basis, much of which is still uncharacterized. In this study, we dissected the genetic composition of yield and yield component traits using data of replicated field trials of an "immortalized F(2)" population derived from an elite rice hybrid. On the basis of an ultrahigh-density SNP bin map constructed with population sequencing, we calculated single-locus and epistatic genetic effects in the whole genome and identified components pertaining to heterosis of the hybrid. The results showed that the relative contributions of the genetic components varied with traits. Overdominance/pseudo-overdominance is the most important contributor to heterosis of yield, number of grains per panicle, and grain weight. Dominance × dominance interaction is important for heterosis of tillers per plant and grain weight and has roles in yield and grain number. Single-locus dominance has relatively small contributions in all of the traits. The results suggest that cumulative effects of these components may adequately explain the genetic basis of heterosis in the hybrid.
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