Related Experiment Video
Updated: Aug 24, 2026

Measuring Gene Expression in Bombarded Barley Aleurone Layers with Increased Throughput
Published on: March 30, 2018
EARLY FLOWERING 5 acts as a floral repressor in Arabidopsis
Yoo-Sun Noh1, Colleen M Bizzell, Bosl Noh
1Department 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.
Related Concept Videos
Cell Signaling in Plants
Morphogenesis
Biological Clocks and Seasonal Responses
Gene Regulation During Sporulation
Plant Hormones
Plant Hormones

