<i>hairy</i> Affects <i>stg-lacZ</i> Reporter Expression

<div><p>(A–F) β-galactosidase expression from the <i>stg-lacZ</i> reporter lines pstg β-E4.9 (A and B), pstg β-E6.4 (C and D), and pstg β-E6.7 (E and F) in wild-type (A, C, and E) and <i>hairy</i> mutant (B, D, and F) embryos. Note the expanded (de-repressed) lacZ expression in the <i>hairy</i> mutant background compared to wild-type for the E4.9 and E6.4 lines (compare [B] to [A] and [D] to [C], respectively).</p> <p>(G) β-galactosidase expression from the <i>stg-lacZ</i> reporter line pstg β-E4.9^ΔHairy (same as the reporter construct shown in [A], but with a Hairy binding site mutation) in a wild-type background. Note the expanded (de-repressed) lacZ expression (compare with [A]). Anterior is to the left. Dorsal is up in (A–D) and (G), whereas the ventral surface is shown in (E–F).</p>