ArticleJournal of experimental botany2016
Two major quantitative trait loci controlling the number of seminal roots in maize co-map with the root developmental genes rtcs and rum1.
Article in Journal of experimental botany, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.
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Who cites it
20 citing papers in PubMed, 1 synthesis or guideline pooled it, 44 citations in OpenAlex.
- Genome-Wide Meta-Analysis of QTLs Associated with Root Traits and Implications for Maize Breeding.International journal of molecular sciences · 2023Pooled it
- In silico analysis of the evolution of root phenotypes during maize domestication in Neolithic soils of Tehuacán.The New phytologist · 2025Article
- A maize landrace introgression library reveals a negative effect of root-to-shoot ratio on water-use efficiency.The plant genome · 2025Article
- Identification of a new QTL underlying seminal root number in a maize-teosinte population.Frontiers in plant science · 2023Article
- The Italian Research on the Molecular Characterization of Maize Kernel Development.International journal of molecular sciences · 2022Review
- Gradual domestication of root traits in the earliest maize from Tehuacán.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- A Genome-Wide Association Study Dissects the Genetic Architecture of the Metaxylem Vessel Number in Maize Brace Roots.Frontiers in plant science · 2022Article
- Wheat root systems as a breeding target for climate resilience.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2021Review
- Root Adaptation via Common Genetic Factors Conditioning Tolerance to Multiple Stresses for Crops Cultivated on Acidic Tropical Soils.Frontiers in plant science · 2020Review
- Article
- QTLian breeding for climate resilience in cereals: progress and prospects.Functional & integrative genomics · 2019Review
- Temporal genetic patterns of root growth in Brassica napus L. revealed by a low-cost, high-efficiency hydroponic system.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2019Article
- Article
- Building a future with root architecture.Journal of experimental botany · 2018Article
- The Quantitative Genetic Control of Root Architecture in Maize.Plant & cell physiology · 2018Article
- Linkage mapping combined with association analysis reveals QTL and candidate genes for three husk traits in maize.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2018Article
- Proteomics of Maize Root Development.Frontiers in plant science · 2018Review
- QTL-By-Environment Interaction in the Response of Maize Root and Shoot Traits to Different Water Regimes.Frontiers in plant science · 2018Article
- An evo-devo perspective on root genetic variation in cereals.Journal of experimental botany · 2017Article
- Non-syntenic genes drive RTCS-dependent regulation of the embryo transcriptome during formation of seminal root primordia in maize (Zea mays L.).Journal of experimental botany · 2017Article
Corrections and comments
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Authors and funding
8 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The genetic dissection of root architecture and functions allows for a more effective and informed design of novel root ideotypes and paves the way to evaluate their effects on crop resilience to a number of abiotic stresses. In maize, limited attention has been devoted to the genetic analysis of root architecture diversity at the early stage. The difference in embryonic (including seminal and primary) root architecture between the maize reference line B73 (which mostly develops three seminal roots) and the landrace Gaspé Flint (with virtually no seminal roots) was genetically dissected using a collection of introgression lines grown in paper rolls and pots. Quantitative trait locus (QTL) analysis identified three QTLs controlling seminal root number (SRN) on chromosome bins 1.02, 3.07, and 8.04-8.05, which collectively explained 66% of the phenotypic variation. In all three cases, Gaspé Flint contributed the allele for lower SRN. Primary root dry weight was negatively correlated with SRN (r= -0.52), and QTLs for primary root size co-mapped with SRN QTLs, suggesting a pleiotropic effect of SRN QTLs on the primary root, most probably caused by competition for seed resources. Interestingly, two out of three SRN QTLs co-mapped with the only two known maize genes (rtcs and rum1) affecting the number of seminal roots. The strong additive effect of the three QTLs and the development of near isogenic lines for each QTL in the elite B73 background provide unique opportunities to characterize functionally the genes involved in root development and to evaluate how root architecture affects seedling establishment, early development, and eventually yield in maize.
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