ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2024
Genomic basis determining root system architecture in maize.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 14 citations in OpenAlex.
- Identification of a Major QTL Controlling Maize Lateral Root Branching Number Through Integrated BSA-Seq and Transcriptome Analysis.International journal of molecular sciences · 2026Article
- Genetic architecture and functional consequences of lateral root length in maize.Journal of experimental botany · 2026Article
- Multi-model GWAS reveals key loci for leaf angle in maize inbred lines from southeast China.BMC plant biology · 2026Article
- Inheritance of root morphology in tropical maize under contrasting nitrogen levels.Scientific reports · 2026Article
- Diversity of Root System Architecture in Mediterranean Maize Inbred Lines Provides New Breeding Opportunities to Improve Stress Resilience and Resource Efficiency.Plants (Basel, Switzerland) · 2026Article
- Genome-wide association study of Ethiopian barley germplasm reveals putative genomic loci underlying root system architectural traits at seedling stage.BMC plant biology · 2025Article
- Root system ideotypes: what is the potential for breeding drought-tolerant grapevine rootstocks?Journal of experimental botany · 2025Review
- Drought stress memory in maize: understanding and harnessing the past for future resilience.Plant cell reports · 2025Review
- Identification of phenotypic and transcriptomic signatures underpinning maize crown root systems.Plant phenomics (Washington, D.C.) · 2025Article
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Authors and funding
12 authors at 2 institutions in 1 country.
Funding
Abstract
key messageA total of 389 and 344 QTLs were identified by GWAS and QTL mapping explaining accumulatively 32.2-65.0% and 23.7-63.4% of phenotypic variation for 14 shoot-borne root traits using more than 1300 individuals across multiple field trails. Efficient nutrient and water acquisition from soils depends on the root system architecture (RSA). However, the genetic determinants underlying RSA in maize remain largely unexplored. In this study, we conducted a comprehensive genetic analysis for 14 shoot-borne root traits using 513 inbred lines and 800 individuals from four recombinant inbred line (RIL) populations at the mature stage across multiple field trails. Our analysis revealed substantial phenotypic variation for these 14 root traits, with a total of 389 and 344 QTLs identified through genome-wide association analysis (GWAS) and linkage analysis, respectively. These QTLs collectively explained 32.2-65.0% and 23.7-63.4% of the trait variation within each population. Several a priori candidate genes involved in auxin and cytokinin signaling pathways, such as IAA26, ARF2, LBD37 and CKX3, were found to co-localize with these loci. In addition, a total of 69 transcription factors (TFs) from 27 TF families (MYB, NAC, bZIP, bHLH and WRKY) were found for shoot-borne root traits. A total of 19 genes including PIN3, LBD15, IAA32, IAA38 and ARR12 and 19 GWAS signals were overlapped with selective sweeps. Further, significant additive effects were found for root traits, and pyramiding the favorable alleles could enhance maize root development. These findings could contribute to understand the genetic basis of root development and evolution, and provided an important genetic resource for the genetic improvement of root traits in maize.
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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.