ArticleBMC plant biology2018
Genetic analysis of seedling root traits reveals the association of root trait with other agronomic traits in maize.
Article in BMC plant biology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 2 of them syntheses that pooled it.
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20 citing papers in PubMed, 2 syntheses or guidelines pooled it, 38 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
- Pinpointing genomic regions associated with root system architecture in rice through an integrative meta-analysis approach.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2022Pooled it
- Identification of a Major QTL Controlling Maize Lateral Root Branching Number Through Integrated BSA-Seq and Transcriptome Analysis.International journal of molecular sciences · 2026Article
- Inheritance of root morphology in tropical maize under contrasting nitrogen levels.Scientific reports · 2026Article
- Genome-wide association study and genomic prediction of root system architecture in a diverse field-grown maize panel.Frontiers in plant science · 2026Article
- SeqSNP-based genic markers reveal genetic architecture and candidate genes for low nitrogen tolerance in tropical maize inbred lines.Frontiers in plant science · 2025Article
- Identification of Quantitative Trait Loci Controlling Root Morphological Traits in an Interspecific Soybean Population Using 2D Imagery Data.International journal of molecular sciences · 2024Article
- Early selection for drought tolerance in popcorn based on gene effects estimated in seedlings.Frontiers in plant science · 2023Article
- Overdominant expression of genes plays a key role in root growth of tobacco hybrids.Frontiers in plant science · 2023Article
- Identification of Zinc Efficiency-Associated Loci (International journal of molecular sciences · 2022Article
- Genetic Variation for Traits Related to Phosphorus Use Efficiency inPlants (Basel, Switzerland) · 2021Article
- Overdominance at the Gene Expression Level Plays a Critical Role in the Hybrid Root Growth ofInternational journal of molecular sciences · 2021Article
- Genome-wide association screening and verification of potential genes associated with root architectural traits in maize (Zea mays L.) at multiple seedling stages.BMC genomics · 2021Article
- Primary Root and Mesocotyl Elongation in Maize Seedlings: Two Organs with Antagonistic Growth below the Soil Surface.Plants (Basel, Switzerland) · 2021Review
- Identification and Analysis of Zinc Efficiency-Associated Loci in Maize.Frontiers in plant science · 2021Article
- Identification of Quantitative Trait Loci Controlling Ethylene Production in Germinating Seeds in Maize (Zea mays L.).Scientific reports · 2020Article
- Root Growth Adaptation to Climate Change in Crops.Frontiers in plant science · 2020Review
- The search for yield predictors for mature field-grown plants from juvenile pot-grown cassava (Manihot esculenta Crantz).PloS one · 2020Article
- Article
- Salinity Stress Alters Root Morphology and Root Hair Traits inPlants (Basel, Switzerland) · 2019Article
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Authors and funding
8 authors at 4 institutions in 1 country.
Funding
Abstract
backgroundRoot systems play important roles in crop growth and stress responses. Although genetic mechanism of root traits in maize (Zea mays L.) has been investigated in different mapping populations, root traits have rarely been utilized in breeding programs. Elucidation of the genetic basis of maize root traits and, more importantly, their connection to other agronomic trait(s), such as grain yield, may facilitate root trait manipulation and maize germplasm improvement. In this study, we analyzed genome-wide genetic loci for maize seedling root traits at three time-points after seed germination to identify chromosomal regions responsible for both seedling root traits and other agronomic traits in a recombinant inbred line (RIL) population (Zong3 × Yu87-1).
resultsEight seedling root traits were examined at 4, 9, and 14 days after seed germination, and thirty-six putative quantitative trait loci (QTLs), accounting for 9.0-23.2% of the phenotypic variation in root traits, were detected. Co-localization of root trait QTLs was observed at, but not between, the three time-points. We identified strong or moderate correlations between root traits controlled by each co-localized QTL region. Furthermore, we identified an overlap in the QTL locations of seedling root traits examined here and six other traits reported previously in the same RIL population, including grain yield-related traits, plant height-related traits, and traits in relation to stress responses. Maize chromosomal bins 1.02-1.03, 1.07, 2.06-2.07, 5.05, 7.02-7.03, 9.04, and 10.06 were identified QTL hotspots for three or four more traits in addition to seedling root traits.
conclusionsOur identification of co-localization of root trait QTLs at, but not between, each of the three time-points suggests that maize seedling root traits are regulated by different sets of pleiotropic-effect QTLs at different developmental stages. Furthermore, the identification of QTL hotspots suggests the genetic association of seedling root traits with several other traits and reveals maize chromosomal regions valuable for marker-assisted selection to improve root systems and other agronomic traits simultaneously.
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