ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2025
Unraveling the genetic basis of maize ear diameter in a multi-parent RIL population derived from tropical and temperate germplasms.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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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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1 citing paper in PubMed.
- Genome-Wide Association Studies of Agronomic and Yield Traits in Sweet Corn (Plants (Basel, Switzerland) · 2026Article
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5 authors.
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Abstract
key messageBased on WGS data, GWAS and QTL mapping jointly reveal the genetic mechanisms underlying maize ear diameter and identify candidate genes associated with this trait. Maize ear diameter is a crucial yield-related trait, yet its underlying genetic mechanisms remain largely undefined. To elucidate its genetic basis, a multi-parent population was developed from tropical and temperate maize germplasms. Employing a combined genome-wide association study and quantitative trait locus (QTL) mapping approach, five novel candidate genes (Zm00001eb032370, Zm00001eb050010, Zm00001eb303690, Zm00001eb023590, and Zm00001eb035700) and three key QTLs (qE1-1, qE1-5, and qE1-7) significantly associated with maize ear diameter were identified. Comprehensive analysis revealed that these candidate genes are involved in essential biological processes, including growth regulation, signal transduction, and stress responses, and likely modulate ear diameter through mechanisms such as hormone balance, cell division, and expansion. This study provides critical novel candidate genes for improving maize ear diameter and offers valuable insights into the molecular mechanisms regulating plant growth and development. Our findings not only enhance the understanding of maize developmental biology but also lay a theoretical foundation and offer new strategies for the genetic improvement of maize yield traits.
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