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A genetic screen identifies the E3 ubiquitin ligase MPSR1 as a suppressor of early flowering of the sensitivity to red light reduced 1 mutant.

Scientific reports - 21 Nov 2025

Johansson Mikael, Liu Wei, Steffen Alexander, Vanderwall Morgan, Gendron Joshua M, Staiger Dorothee

Abstract excerpt

The timing of floral transition is critical for plants to maximize reproductive success. In Arabidopsis thaliana, SENSITIVITY TO RED LIGHT REDUCED 1 (SRR1) delays the onset of flowering in non-favourable environmental conditions. Furthermore, SRR1 is required for the function of the circadian clock. In a genetic suppressor screen for mutants that alleviate early flowering of srr1-1 mutants, we identified ssm136...

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Identifiers

PMID: 41271974
DOI: 10.1038/s41598-025-26769-5
PMCID: PMC12639119

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