Dataset Information

IGT/LAZY genes are differentially influenced by light and required for light-induced change to organ angle.

ABSTRACT:

Background

Plants adjust their growth orientations primarily in response to light and gravity signals. Considering that the gravity vector is fixed and the angle of light incidence is constantly changing, plants must somehow integrate these signals to establish organ orientation, commonly referred to as gravitropic set-point angle (GSA). The IGT gene family contains known regulators of GSA, including the gene clades LAZY, DEEPER ROOTING (DRO), and TILLER ANGLE CONTROL (TAC).

Results

Here, we investigated the influence of light on different aspects of GSA phenotypes in LAZY and DRO mutants, as well as the influence of known light signaling pathways on IGT gene expression. Phenotypic analysis revealed that LAZY and DRO genes are collectively required for changes in the angle of shoot branch tip and root growth in response to light. Single lazy1 mutant branch tips turn upward in the absence of light and in low light, similar to wild-type, and mimic triple and quadruple IGT mutants in constant light and high-light conditions, while triple and quadruple IGT/LAZY mutants show little to no response to changing light regimes. Further, the expression of IGT/LAZY genes is differentially influenced by daylength, circadian clock, and light signaling.

Conclusions

Collectively, the data show that differential expression of LAZY and DRO genes are required to enable plants to alter organ angles in response to light-mediated signals.

SUBMITTER: Waite JM

PROVIDER: S-EPMC10795295 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature

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Publications

IGT/LAZY genes are differentially influenced by light and required for light-induced change to organ angle.

Waite Jessica Marie JM Dardick Christopher C

BMC biology 20240117 1

<h4>Background</h4>Plants adjust their growth orientations primarily in response to light and gravity signals. Considering that the gravity vector is fixed and the angle of light incidence is constantly changing, plants must somehow integrate these signals to establish organ orientation, commonly referred to as gravitropic set-point angle (GSA). The IGT gene family contains known regulators of GSA, including the gene clades LAZY, DEEPER ROOTING (DRO), and TILLER ANGLE CONTROL (TAC).<h4>Results</ ...[more]

PMID: 38233837

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Dataset Information

IGT/LAZY genes are differentially influenced by light and required for light-induced change to organ angle.

Background

Results

Conclusions

Publications

IGT/LAZY genes are differentially influenced by light and required for light-induced change to organ angle.

Similar Datasets

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