Figure 6

Rep1p is required to down-regulate a subset of nitrogen starvation-induced genes. (a) Average expression profiles in wild-type (pat1-synchronized cells from [4]) and rep1Δ cells of two subclusters of genes induced in response to nitrogen starvation: delayed (blue) and transient (red), as defined by [4]. (b) Hierarchical cluster analysis of the two gene clusters shown in (a), with columns representing experimental time points and rows representing genes. The mRNA levels at each time point of pat1 time courses relative to the levels in vegetative cells are color-coded as indicated at the bottom with missing data in gray. Labeling is as in Figure 1. (c) Histogram showing the gene expression levels of rep1Δ relative to wild-type meiotic cells. The two clusters are colored as in (a).