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Plant J. 2004 May;38(4):664-72.

EARLY FLOWERING 5 acts as a floral repressor in Arabidopsis.

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1
Department of Biochemistry, College of Agricultural and Life Sciences, University of Wisconsin, Madison, WI 53706-1544, USA.

Abstract

EARLY FLOWERING 5 (ELF5) is a single-copy gene involved in flowering time regulation in Arabidopsis. ELF5 encodes a nuclear-targeted protein that is related to the human nuclear protein containing a WW domain (Npw)38-binding protein (NpwBP). Lesions in ELF5 cause early flowering in both long days and short days. elf5 mutations partially suppress the late flowering of both autonomous-pathway mutants and FRIGIDA (FRI)-containing lines by reducing the expression of FLOWERING LOCUS C (FLC), a floral repressor upon which many of the flowering pathways converge. elf5 mutations also partially suppress photoperiod-pathway mutants, and this, along with the ability of elf5 mutations to cause early flowering in short days, indicates that ELF5 also affects flowering independently of FLC.

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