A genetic model for light-regulated seedling Arabidopsis

The genetic interactions among mutations that define distinct loci involved in light-regulated development thaliana are described. The mutations in these eight distinct phenotypic classes with opposite mutations in either one of two genes, DET1 or DET2, grown plants that develop as light-grown wild-type in the second class exhibit a reduced response to mutations in any one of five genes, HY1, HY2, HY3, reduced responses to red-light. Four of these genes, affect the activity of one or all of the red-light phytochromes. The HY4 gene product is involved in