ArticleJournal of experimental botany2022
Genetic modification of PIN genes induces causal mechanisms of stay-green drought adaptation phenotype.
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 14 papers.
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Who cites it
14 citing papers in PubMed, 33 citations in OpenAlex.
- Biotechnological and genetic innovations to enhance sorghum adaptation under climate change.Frontiers in plant science · 2026Review
- The evolution and developmental expression profile of the PIN-FORMED family in Setaria viridis.Plant molecular biology · 2025Article
- Phenotyping the hidden half: combining UAV phenotyping and machine learning to predict barley root traits in the field.Journal of experimental botany · 2025Article
- The PIN2 ortholog in barley modifies root gravitropism and architecture.The plant genome · 2025Article
- Crop growth model-enabled genetic mapping of biomass accumulation dynamics in photoperiod-sensitive sorghum.The plant genome · 2025Article
- Stay-Green Trait Enhances Grain Yield, Nutritional Quality, and Seed Germination Ability in Oat (Plants (Basel, Switzerland) · 2025Article
- Overcoming physiological trade-offs between flowering time and crop yield: strategies for a changing climate.Journal of experimental botany · 2025Review
- Cellular and Molecular Regulatory Signals in Root Growth and Development.International journal of molecular sciences · 2025Article
- Sorghum as a monocot model for drought research.Frontiers in plant science · 2025Review
- Genetic loci associated with sorghum drought tolerance in multiple environments and their sensitivity to environmental covariables.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2024Article
- Association mapping and candidate gene identification for yield traits in European hazelnut (Plant direct · 2024Article
- Genetic dissection of root architecture in Ethiopian sorghum landraces.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2023Article
- Integrating stay-green and PIN-FORMED genes: PIN-FORMED genes as potential targets for designing climate-resilient cereal ideotypes.AoB PLANTS · 2023Review
- The Enzyme Lysine Malonylation of Calvin Cycle and Gluconeogenesis Regulated Glycometabolism inInternational journal of molecular sciences · 2023Article
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Authors and funding
13 authors at 2 institutions in 2 countries.
Funding
Abstract
The stay-green trait is recognized as a key drought adaptation mechanism in cereals worldwide. Stay-green sorghum plants exhibit delayed senescence of leaves and stems, leading to prolonged growth, a reduced risk of lodging, and higher grain yield under end-of-season drought stress. More than 45 quantitative trait loci (QTL) associated with stay-green have been identified, including two major QTL (Stg1 and Stg2). However, the contributing genes that regulate functional stay-green are not known. Here we show that the PIN FORMED family of auxin efflux carrier genes induce some of the causal mechanisms driving the stay-green phenotype in sorghum, with SbPIN4 and SbPIN2 located in Stg1 and Stg2, respectively. We found that nine of 11 sorghum PIN genes aligned with known stay-green QTL. In transgenic studies, we demonstrated that PIN genes located within the Stg1 (SbPIN4), Stg2 (SbPIN2), and Stg3b (SbPIN1) QTL regions acted pleiotropically to modulate canopy development, root architecture, and panicle growth in sorghum, with SbPIN1, SbPIN2, and SbPIN4 differentially expressed in various organs relative to the non-stay-green control. The emergent consequence of such modifications in canopy and root architecture is a stay-green phenotype. Crop simulation modelling shows that the SbPIN2 phenotype can increase grain yield under drought.
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