Genetic Enhancer Screen to Identify Red Light Hypersensitive Mutants in the Model Plant Species Arabidopsis thaliana

File(s)
Date
2012-04Author
Ziegler, Ryan
Montpetit, Jordan T.
Advisor(s)
Gingerich, Derek J.
Metadata
Show full item recordAbstract
A plant's ability to perceive and respond to both quantity and quality of light is an essential component of maintaining healthy
growth and development. One way in which plants respond to changing light conditions is via their perception of varying amounts of red (~660nm) and far red (~730nm) wavelengths of light. To do this, plants rely on a group of photoreceptors known as phytochromes (PHYs). This study found that the two genes Light Regulating BTB 1 (LRB1) and Light Regulating BTB 2 (LRB2) participate in the red light signaling pathway in Arabidopsis. Plants with mutations in these genes are red light hypersensitive and thus display an enhanced
de-etiolation response and have significant shade
tolerance. In order to determine other components, genes, or factors involved in the red light response pathway, this study conducted a
series of genetic enhancer screens to identify mutations which exacerbate (or enhance) the phenotypic characteristics of the lrb1/lrb2 double mutants.
Subject
Arabidopsis--Genetics
Mutation--Biology
Phenotype
Phytochrome
Plants--Photomorphogenesis
Posters
Permanent Link
http://digital.library.wisc.edu/1793/64189Type
Presentation
Description
Color poster with text, images, charts, diagrams, and graphs.