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Battle, MW, Ewing, SF, Dickson, C, Obaje, J, Edgeworth, KN, Bindbeutel, R, Antoniou-Kourounioti, RL, Nusinow, DA and Jones, MA (2024) Manipulation of photosensory and circadian signaling restricts phenotypic plasticity in response to changing environmental conditions in Arabidopsis. Molecular Plant, 17 (9). pp. 1458-1471. ISSN 1674-2052
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Manipulation of photosensory and circadian signaling restricts phenotypic plasticity.pdf - Published Version Available under License Creative Commons Attribution. Download (1MB) | Preview |
Abstract
Plants exploit phenotypic plasticity to adapt their growth and development to prevailing environmental conditions. Interpretation of light and temperature signals is aided by the circadian system, which provides a temporal context. Phenotypic plasticity provides a selective and competitive advantage in nature but is obstructive during large-scale, intensive agricultural practices since economically important traits (including vegetative growth and flowering time) can vary widely depending on local environmental conditions. This prevents accurate prediction of harvesting times and produces a variable crop. In this study, we sought to restrict phenotypic plasticity and circadian regulation by manipulating signaling systems that govern plants’ responses to environmental signals. Mathematical modeling of plant growth and development predicted reduced plant responses to changing environments when circadian and light signaling pathways were manipulated. We tested this prediction by utilizing a constitutively active allele of the plant photoreceptor phytochrome B, along with disruption of the circadian system via mutation of EARLY FLOWERING3. We found that these manipulations produced plants that are less responsive to light and temperature cues and thus fail to anticipate dawn. These engineered plants have uniform vegetative growth and flowering time, demonstrating how phenotypic plasticity can be limited while maintaining plant productivity. This has significant implications for future agriculture in both open fields and controlled environments.
| Item Type: | Article |
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| Uncontrolled Keywords: | circadian; developmental plasticity; phenotypic plasticity; external coincidence; light; temperature; Arabidopsis; Flowers; Arabidopsis Proteins; Environment; Temperature; Signal Transduction; Gene Expression Regulation, Plant; Circadian Rhythm; Phenotype; Light; Phytochrome B; circadian; developmental plasticity; external coincidence; light; phenotypic plasticity; temperature; Arabidopsis; Circadian Rhythm; Phytochrome B; Arabidopsis Proteins; Light; Signal Transduction; Phenotype; Gene Expression Regulation, Plant; Flowers; Temperature; Environment; 2 Zero Hunger; Arabidopsis; Circadian Rhythm; Phytochrome B; Arabidopsis Proteins; Light; Signal Transduction; Phenotype; Gene Expression Regulation, Plant; Flowers; Temperature; Environment; 0601 Biochemistry and Cell Biology; 0604 Genetics; 0607 Plant Biology; Plant Biology & Botany |
| Subjects: | G Geography. Anthropology. Recreation > GE Environmental Sciences |
| Divisions: | Biological and Environmental Sciences (from Sep 19) |
| Publisher: | Cell Press |
| SWORD Depositor: | A Symplectic |
| Date Deposited: | 28 Nov 2024 16:42 |
| Last Modified: | 28 Nov 2024 16:45 |
| DOI or ID number: | 10.1016/j.molp.2024.07.007 |
| URI: | https://researchonline.ljmu.ac.uk/id/eprint/24930 |
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