ArticleGenes2026
Dissection of the Genetic Basis of Maize Plant Architecture and Candidate Gene Mining Based on the MAGIC Population.
Article in Genes, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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8 authors.
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Abstract
BACKGROUND/
objectivesPlant architecture is a critical determinant of high-density tolerance and yield potential in maize (
methodsIn this study, we utilized a Multi-parent Advanced Generation Inter-cross (MAGIC) population comprising 935 recombinant inbred lines (RILs) derived from 16 diverse elite founders. A comprehensive phenotypic characterization of six pivotal architectural traits-plant height (PH), ear height (EH), ear leaf length (LL), ear leaf width (LW), tassel main axis length (TL), and tassel branch number (TBN)-was conducted across three distinct agro-ecological environments.
resultsPhenotypic analysis revealed substantial natural variation and high broad-sense heritability (
conclusionsThese results indicate that maize plant architecture is regulated by a modular genetic framework, with specific loci independently regulating canopy structure and source-sink components. It should be noted that the findings of this study are based solely on statistical models identifying significant associations between genetic loci and phenotypes; the biological regulatory functions of the candidate genes have not yet been experimentally validated. Nevertheless, this study provides new insights into the molecular mechanisms underlying maize morphogenesis and lays a solid theoretical foundation for molecular design breeding aimed at developing high-yielding varieties tolerant of high planting densities.
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