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Model of the temperature-dependent FLOWERING LOCUS M (FLM) function. At low temperature, SHORT VEGETATIVE PHASE (SVP) can form homodimer or interact with FLM-β to form heterodimer to repress floral activators. When the temperature increased, the alternative splicing of FLM pre-mRNA increased the level of FLM-δ. FLM-δ proteins compete with the FLM-β to form FLM-δ-SVP complex and repress the transcription of floral activator genes. AS, alternative splicing.
