Derepression of HAST domain genes. A. Genes localized to HAST domains  up-regulated specifically in 4- and 7-day-old BR-F colonies compared to both BR-RF and BR-S colonies. Genes only expressed differently on the 4th day are in standard letters, genes expressed differently on both the 4th and 7th day are in bold and genes only expressed differently on the 7th day are italicized. B. Left, drop assays of cells from BR-F, BR-RF, BR-S and BR-S-hda1 colonies plated on GMA supplemented with calcofluor white and grown at 28°C and 37°C as indicated. Right, 6-day-old colonies of BR-F, BR-S and BR-S-hda1 strains. Scale bar = 1 mm.