ArticlePlanta2019
Role of a cotton endoreduplication-related gene, GaTOP6B, in response to drought stress.
Article in Planta, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 29 citations in OpenAlex.
- Cotton Seed Germination Under the Main Abiotic Stress: Physiological Mechanisms, Molecular Responses, and Agronomic Strategies.Plants (Basel, Switzerland) · 2026Review
- Comparative analysis to investigate a possible mechanism for cell enlargement in succulent leaves of Crassothonna capensis (Asteraceae).Journal of plant research · 2026Article
- The role of sugar transporter BrSWEET11 in promoting plant early flowering and preliminary exploration of its molecular mechanism.Plant cell reports · 2024Article
- Dynamic Translational Landscape Revealed by Genome-Wide Ribosome Profiling under Drought and Heat Stress in Potato.Plants (Basel, Switzerland) · 2023Article
- GBS-SNP and SSR based genetic mapping and QTL analysis for drought tolerance in upland cotton.Physiology and molecular biology of plants : an international journal of functional plant biology · 2021Article
- Comparative transcriptome analysis revealed differential gene expression in multiple signaling pathways at flowering in polyploid Brassica rapa.Cell & bioscience · 2021Article
- Genetic Potential and Inheritance Pattern of Phenological Growth and Drought Tolerance in Cotton (Frontiers in plant science · 2021Article
- Characterization of the Gh4CL gene family reveals a role of Gh4CL7 in drought tolerance.BMC plant biology · 2020Article
- Physiological and transcriptome analyses ofCell & bioscience · 2019Article
- Article
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Authors and funding
10 authors at 1 institution in 1 country.
Funding
Abstract
MAIN
conclusionCotton GaTOP6B is involved in cellular endoreduplication and a positive response to drought stress via promoting plant leaf and root growth. Drought is deemed as one of adverse conditions that could cause substantial reductions in crop yields worldwide. Since cotton exhibits a moderate-tolerant phenotype under water-deficit conditions, the plant could therefore be used to characterize potential new genes regulating drought tolerance in crop plants. In this work, GaTOP6B, encoding DNA topoisomerase VI subunit B, was identified in Asian cotton (Gossypium arboreum). Virus-induced gene silencing (VIGS) and overexpression (OE) were used to investigate the biological function of GaTOP6B in G. arboreum and Arabidopsis thaliana under drought stress. The GaTOP6B-silencing plants showed a reduced ploidy level, and displayed a compromised tolerance phenotype including lowered relative water content (RWC), decreased proline content and antioxidative enzyme activity, and an increased malondialdehyde (MDA) content under drought stress. GaTOP6B-overexpressing Arabidopsis lines, however, had increased ploidy levels, and were more tolerant to drought treatment, associated with improved RWC maintenance, higher proline accumulation, and reduced stomatal aperture under drought stress. Transcriptome analysis showed that genes involved in the processes like cell cycle, transcription and signal transduction, were substantially up-regulated in GaTOP6B-overexpressing Arabidopsis, promoting plant growth and development. More specifically, under drought stress, the genes involved in the biosynthesis of secondary metabolites such as phenylpropanoid, starch and sucrose were selectively enhanced to improve tolerance in plants. Taken together, the results demonstrated that GaTOP6B could coordinately regulate plant leaf and root growth via cellular endoreduplication, and positively respond to drought stress. Thus, GaTOP6B could be a competent candidate gene for improvement of drought tolerance in crop species.
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