ArticleJournal of experimental botany2022
Dissecting the genetic control of natural variation in sorghum photosynthetic response to drought stress.
Article in Journal of experimental botany, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 18 citations in OpenAlex.
- Integrated Multi-Omic Analyses Uncover a Regulatory Link Between Photosynthesis and Drought Tolerance in Field-Grown Sorghum.Plant, cell & environment · 2026Article
- Mapping cis-regulatory mutations at scale in sorghum enables modulation of gene expression.Nature biotechnology · 2026Article
- Genome-wide association studies and modeling of stomatal gas conductance reveal genetic control of water-use efficiency in sorghum.Plant physiology · 2026Article
- Adaptability and production potential of sorghum in cool regions: heterosis analysis of parameters of light response and COFrontiers in plant science · 2026Article
- Root and Leaf Traits for Dehydration Avoidance and Enhanced Grain Yield in Cowpea (Plant direct · 2025Article
- Across-rotation genetic analysis and multitrait selection in a cloned cross ofFrontiers in plant science · 2025Article
- Cross-species predictive modeling reveals conserved drought responses between maize and sorghum.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Genetic variation in photosynthesis: many variants make light work.Journal of experimental botany · 2022Article
Corrections and comments
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Authors and funding
2 authors at 1 institution in 2 countries.
Funding
Abstract
Drought stress causes crop yield losses worldwide. Sorghum is a C4 species tolerant to moderate drought stress, and its extensive natural variation for photosynthetic traits under water-limiting conditions can be exploited for developing cultivars with enhanced stress tolerance. The objective of this study was to discover genes/genomic regions that control the sorghum photosynthetic capacity under pre-anthesis water-limiting conditions. We performed a genome-wide association study for seven photosynthetic gas exchange and chlorophyll fluorescence traits during three periods of contrasting soil volumetric water content (VWC): control (30% VWC), drought (15% VWC), and recovery (30% VWC). Water stress was imposed with an automated irrigation system that generated a controlled dry-down period for all plants, to perform an unbiased genotypic comparison. A total of 60 genomic regions were associated with natural variation in one or more photosynthetic traits in a particular treatment or with derived variables. We identified 33 promising candidate genes with predicted functions related to stress signaling, oxidative stress protection, hormonal response to stress, and dehydration protection. Our results provide new knowledge about the natural variation and genetic control of sorghum photosynthetic response to drought with the ultimate goal of improving its adaptation and productivity under water stress scenarios.
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