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Genome-wide analysis of LINK1 and LINK2 effects on the Arabidopsis transcriptome

ABSTRACT: The goal of this study was to compare the transcriptional profile (RNA-seq) of wild type plants with that of link1link2 double mutants grown under continous light or long day (16h light/8 h darkness) conditions. In the first experiment wild-type and link1link2 mutant plants were grown for two weeks under continuous white light conditions at 22 degrees centigrades and the transcriptional profile of these plants was analyzed using RNA-seq. In the second experiment, wild-type and link1link2 mutants were grown under long day conditions (16 h light/8 h darkness), and the transcriptional profile of these plants was analyzed in samples harvested every 4 hours over a 24 hour time-course, starting 2 hours after the onset of the light period.

ORGANISM(S): Arabidopsis thaliana

SUBMITTER: Marcelo Yanovsky 

PROVIDER: E-GEOD-43865 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

LNK genes integrate light and clock signaling networks at the core of the Arabidopsis oscillator.

Rugnone Matias L ML   Faigón Soverna Ana A   Sanchez Sabrina E SE   Schlaen Ruben Gustavo RG   Hernando Carlos Esteban CE   Seymour Danelle K DK   Mancini Estefanía E   Chernomoretz Ariel A   Weigel Detlef D   Más Paloma P   Yanovsky Marcelo J MJ  

Proceedings of the National Academy of Sciences of the United States of America 20130701 29

Light signaling pathways and the circadian clock interact to help organisms synchronize physiological and developmental processes with periodic environmental cycles. The plant photoreceptors responsible for clock resetting have been characterized, but signaling components that link the photoreceptors to the clock remain to be identified. Here we describe a family of night light-inducible and clock-regulated genes (LNK) that play a key role linking light regulation of gene expression to the contr  ...[more]

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