ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2006
A simplified conceptual model of carbon/nitrogen functioning for QTL analysis of winter wheat adaptation to nitrogen deficiency.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.
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48 citing papers in PubMed, 142 citations in OpenAlex.
- Genome-wide association study, linkage mapping and transcriptomic analysis reveal candidate genes associated with nitrogen use efficiency in wheat.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
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- Breeding progress of nitrogen use efficiency of cereal crops, winter oilseed rape and peas in long-term variety trials.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2024Review
- Regulation of root growth and elongation in wheat.Frontiers in plant science · 2024Review
- QTL Mapping and Candidate Gene Identifying for N, P, and K Use Efficiency at the Maturity Stages in Wheat.Genes · 2023Article
- QTL Mapping of Agronomic and Physiological Traits at the Seedling and Maturity Stages under Different Nitrogen Treatments in Barley.International journal of molecular sciences · 2023Article
- Promising physiological traits associated with nitrogen use efficiency in rice under reduced N application.Frontiers in plant science · 2023Article
- Root system architecture of historical spring wheat cultivars is associated with alleles and transcripts of major functional genes.BMC plant biology · 2022Article
- GWAS identifies genetic loci underlying nitrogen responsiveness in the climate resilient CJournal of advanced research · 2022Article
- Current Status and Future Prospective for Nitrogen Use Efficiency in Wheat (Plants (Basel, Switzerland) · 2022Review
- Integration of Crop Growth Models and Genomic Prediction.Methods in molecular biology (Clifton, N.J.) · 2022Article
- Nitrate Regulates Maize Root Transcriptome through Nitric Oxide Dependent and Independent Mechanisms.International 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
- Genome-wide association analysis unveils novel QTLs for seminal root system architecture traits in Ethiopian durum wheat.BMC genomics · 2021Article
- Variation for Nitrogen Use Efficiency Traits in Wheat Under Contrasting Nitrogen Treatments in South-Eastern Europe.Frontiers in plant science · 2021Article
- Biochemical and Genetic Approaches Improving Nitrogen Use Efficiency in Cereal Crops: A Review.Frontiers in plant science · 2021Review
- Nitrogen Uptake Efficiency, Mediated by Fine Root Growth, Early Determines Temporal and Genotypic Variations in Nitrogen Use Efficiency of Winter Oilseed Rape.Frontiers in plant science · 2021Article
- Crop Mass and N Status as Prerequisite Covariables for Unraveling Nitrogen Use Efficiency across Genotype-by-Environment-by-Management Scenarios: A Review.Plants (Basel, Switzerland) · 2020Review
- The physiological mechanism underlying root elongation in response to nitrogen deficiency in crop plants.Planta · 2020Review
- Identification of quantitative trait loci associated with nitrogen use efficiency in winter wheat.PloS one · 2020Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Breeding new varieties adapted to low-input agricultural practices is of particular interest in light of current economical and environmental concerns. Improving nitrogen (N) uptake and N utilization efficiency (NUE) are two ways of producing varieties tolerant to low N input. To offer new possibilities to breeders, it is necessary to acquire more knowledge about these two processes. Knowing C and N metabolisms are linked and knowing N uptake is partly explained by root characteristics, we carried out a QTL analysis for traits associated with N uptake and NUE by using both a conceptual model of C/N plant functioning and a root architecture description. A total of 120 lines were selected according to their genotype among 241 doubled haploids derived from two varieties, one N stress tolerant and the other N stress sensitive. They were grown in hydroponic rhizotrons under N-limited nutritional conditions. Initial conditions varied among genotypes; therefore, total root length on day 1 was used to correct traits. Heritabilities ranged from 13 to 84%. Thirty-two QTL were located: 6 associated with root architecture (on chromosomes 4B, 5A, 5D and 7B), 6 associated with model efficiencies (1B, 2B, 6A, 6B, 7A, 7B and 7D) and 20 associated with state variables (1A, 1B, 2B, 4B, 5A, 5B and 6B). The effects of the dwarfing gene Rht-B1 on root traits are discussed, as well as the features of a conceptual plant functioning model, as a useful tool to assess pertinent traits for QTL detection. It is suggested that further studies that couple QTL with a functioning model and a root architecture description could serve in the search for ideotypes.
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