Light Signal Transduction Networks in Maize

Abstract

Light signal transduction networks integrate environmental signals with endogenous developmental programs. Several photoreceptors, including phytochromes, cryptochromes, and phototropins as well as some of their signaling partners have been characterized in higher plants. Recent studies in maize have revealed the importance of phytochromes in the regulation of several agronomi-cally important traits, indicating that the manipulation of light response may prove fruitful in enhancing maize yields. However, little is known of the molecular components of light signal transduction pathways in maize, making it difficult to dissect the pathway using reverse genetic or association mapping techniques. Here, we summarize our current understanding of light response in maize and discuss strategies for enhancing agronomic performance through the manipulation of light signal transduction pathways.