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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Transcription profiling of Arabidopsis strain with T-DNA insertions in the HAF2 gene

ABSTRACT: T-DNA insertions in the HAF2 gene are characterised. The mutation of the gene induced production of pale young leaves. Genetic analysis showed that HAF2 is required for both phytochrome and cryptochrome signalling. Accordingly, light-inducible gene expression and CAB2 promoter activity were affected by the mutation. The present transcriptome analysis showed that the mutation affected about 9% of Arabidopsis genes in 14 day-old leaves.

ORGANISM(S): Arabidopsis thaliana

SUBMITTER: Lemonnier Gaëtan

PROVIDER: E-MEXP-178 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Arabidopsis HAF2 gene encoding TATA-binding protein (TBP)-associated factor TAF1, is required to integrate light signals to regulate gene expression and growth.

Bertrand Claire C Benhamed Moussa M Li You-Fang YF Ayadi Mira M Lemonnier Gaëtan G Renou Jean-Pierre JP Delarue Marianne M Zhou Dao-Xiu DX

The Journal of biological chemistry 20041103 2

Plant growth and development are sensitive to light. Light-responsive DNA-binding transcription factors have been functionally identified. However, how transcription initiation complex integrates light signals from enhancer-bound transcription factors remains unknown. In this work, we characterized mutations within the Arabidopsis HAF2 gene encoding TATA-binding protein-associated factor TAF1 (or TAF(II)250). The mutation of HAF2 induced decreases on chlorophyll accumulation, light-induced mRNA ...[more]

PMID: 15525647

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