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H3K36me3 ChIP-seq

ABSTRACT: Plants developed a plasticity to eviromental conditions, such as temperaure, that allows their adaptation. A change in ambient temperature leads to changes in the transcriptome in plants, such as the production of different splicing isoforms. Here we study temperature induced alternative splicing events in Arabidopsis thaliana wild-type and two epigentic mutants, sdg8-2 and sdg26-1 using an RNA-seq approach.

ORGANISM(S): Arabidopsis thaliana

PROVIDER: GSE85279 | GEO | 2017/05/10

SECONDARY ACCESSION(S): PRJNA338073

REPOSITORIES: GEO

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Temperature induced alternative splicing is affected in sdg8 and sdg26.

Project description:Plants developed a plasticity to environmental conditions, such as temperature, that allows their adaptation. A change in ambient temperature leads to changes in the transcriptome in plants, such as the production of different splicing isoforms. Here we study temperature induced alternative splicing events in Arabidopsis thaliana wild-type and two epigenetic mutants, sdg8-2 and sdg26-1 using an RNA-seq approach.

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Project description:How plants control the transition to flowering in response to ambient temperature is only beginning to be understood. In Arabidopsis thaliana, the MADS-box transcription factor genes FLOWERING LOCUS M (FLM) and SHORT VEGETATIVE PHASE (SVP) have key roles in this process. FLM is subject to temperature-dependent alternative splicing, producing two splice variants, FLM-β and FLM-δ, which compete for interaction with the floral repressor SVP. The SVP/FLM-β complex is predominately formed at low temperatures and prevents precocious flowering. In contrast, the competing SVP FLM-δ complex is impaired in DNA binding and acts as a dominant negative activator of flowering at higher temperatures. Our results demonstrate the importance of temperature-dependent alternative splicing in modulating the timing of the floral transition in response to environmental change.

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Temperature-dependent alternative splicing of FLM controls flowering in Arabidopsis thaliana

Project description:How plants control the transition to flowering in response to ambient temperature is only beginning to be understood. In Arabidopsis thaliana, the MADS-box transcription factor genes FLOWERING LOCUS M (FLM) and SHORT VEGETATIVE PHASE (SVP) have key roles in this process. FLM is subject to temperature-dependent alternative splicing, producing two splice variants, FLM-M-NM-2 and FLM-M-NM-4, which compete for interaction with the floral repressor SVP. The SVP/FLM-M-NM-2 complex is predominately formed at low temperatures and prevents precocious flowering. In contrast, the competing SVP FLM-M-NM-4 complex is impaired in DNA binding and acts as a dominant negative activator of flowering at higher temperatures. Our results demonstrate the importance of temperature-dependent alternative splicing in modulating the timing of the floral transition in response to environmental change. ChIP-seq A. thaliana FLM (3 replicates for gFLM and 2 replicates for FLM splice variants)

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