Gridlock, an HLH Gene Required for Assembly of the Aorta in Zebrafish.

Discusses a study on the gridlock mutation in the zebrafish Danio rerio which selectively perturbs assembly of the artery. Morphological and functional difference between arteries and veins; Methods used in cloning the gridlock mutation; Genomic sequence of gridlock in mutant embryos; Implications of zebrafish mutation for future research.