ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2007
Genetic variability for physiological traits under drought conditions and differential expression of water stress-associated genes in sunflower (Helianthus annuus L.).
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.
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25 citing papers in PubMed, 151 citations in OpenAlex.
- The transcription factorHorticulture research · 2026Article
- Comprehensive morphological and biochemical characterization of garlic (Allium sativum L.) genotypes using multivariate analysis.BMC plant biology · 2025Article
- Effects of drought stress on physiological-biochemical characteristics and anatomical structure ofFrontiers in plant science · 2025Article
- Integrated analysis of transcriptomics and metabolomics of garden asparagus (Asparagus officinalis L.) under drought stress.BMC plant biology · 2024Article
- Sunflower Hybrids and Inbred Lines Adopt Different Physiological Strategies and Proteome Responses to Cope with Water Deficit.Biomolecules · 2023Article
- Similar Transcriptomic Responses to Early and Late Drought Stresses Produce Divergent Phenotypes in Sunflower (International journal of molecular sciences · 2023Article
- Applications of Molecular Markers for Developing Abiotic-Stress-Resilient Oilseed Crops.Life (Basel, Switzerland) · 2022Review
- Combined analysis of transcriptome and metabolome reveals the molecular mechanism and candidate genes ofFrontiers in plant science · 2022Article
- Pearl Millet Aquaporin GeneFrontiers in plant science · 2022Article
- Adaptation Strategies to Improve the Resistance of Oilseed Crops to Heat Stress Under a Changing Climate: An Overview.Frontiers in plant science · 2021Review
- Transcriptome Profiling ofGenes · 2020Article
- Metabolomic characterization of sunflower leaf allows discriminating genotype groups or stress levels with a minimal set of metabolic markers.Metabolomics : Official journal of the Metabolomic Society · 2019Article
- Drought weakens the positive effects of defoliation on native rhizomatous grasses but enhances the drought-tolerance traits of native caespitose grasses.Ecology and evolution · 2018Article
- Identification of SSR and retrotransposon-based molecular markers linked to morphological characters in oily sunfl ower (Helianthus annuus L.) under natural and water-limited states.Journal of genetics · 2018Article
- Heliaphen, an Outdoor High-Throughput Phenotyping Platform for Genetic Studies and Crop Modeling.Frontiers in plant science · 2018Article
- Review
- Integration of transcriptomic and metabolic data reveals hub transcription factors involved in drought stress response in sunflower (Helianthus annuus L.).Plant molecular biology · 2017Article
- Sunflower Hybrid Breeding: From Markers to Genomic Selection.Frontiers in plant science · 2017Review
- Identification of drought tolerance markers in a diverse population of rice cultivars by expression and metabolite profiling.PloS one · 2013Article
- Article
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6 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Genotypic variation for water status and gas exchange parameters under different water treatments (well-watered and water-stressed plants before and after rehydration) were investigated in a population of recombinant inbred lines (RILs) of sunflower (Helianthus annuus L.). Afterwards, four RILs and parental lines presenting contrasting responses to dehydration and rehydration were selected to determine the differential expression of four water-stress associated genes: aquaporin, dehydrin, leafy cotyledon1-like protein and fructose-1,6 bisphosphatase. Water stress revealed a high genetic variability for water status and gas exchange parameters when compared with well-watered genotypes. Genetic gain when selected RILs were compared with the best parent was significant for most traits due to transgressive segregation. QTL mapping and graphical genotyping showed that RILs carrying different genomic regions for some QTLs presented also physiological different characteristics as well as gene expression patterns. The expression level of aquaporin genes in leaves of four RILs and their parents was down regulated by water stress and was associated with relative water content (RWC). Down-regulation was also associated with genomic regions having alleles with negative effects on plant water status. The level of dehydrin transcripts increased in leaves of all studied RILs in response to water stress. Transcript accumulations of dehydrin and leafy cotyledon1-like genes, likely involved in protective tolerance processes, were not correlated directly with plant water status or QTL effects. Down-regulation of fructose-1,6 bisphosphatase was observed under water stress. Net photosynthesis rate (P(n)) and the fructose-1,6 bisphosphatase gene expression levels were associated mainly after rehydration. This phenomenon indicates an association between physiological response to water stress and differential expression of water-stress related genes.
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