Genevieve Hoopes (Buell Lab)

  • Oct 22, 2019

Date & Location: October 22, 2019, at 12p; Room 168 Plant Biology Building

Subject: Investigating the circadian clock in crops

Abstract: The circadian clock is composed of an endogenous oscillator which is regulated by environmental inputs which in turn drives the rhythmicity of molecular processes (e.g. gene expression over 24 hours) and corresponding physiological responses (e.g. leaf movement). In plants, the circadian clock regulates numerous physiological responses, including hormone signaling, metabolism, flowering time, hypocotyl elongation, and stress responses. Specifically, variation in circadian clock genes have been shown to affect sugar beet growth, Chinese cabbage freezing and salt stress tolerance, soybean maturity, and potato maturity. The genetic variation found in circadian-related genes is often from wild species and landraces, further highlighting the role of the circadian clock in crop domestication. While some is known about the role of circadian clock genes in these pathways, little is known about the circadian clock itself in most crops and how genetic variation impacts the clock. I will review the current questions and challenges of circadian biology for plants, specifically detailing current progress for crops.

Speaker Lab: Dr. Robin Buell