Holloway, D.M., Reinitz, J., Spirov, A., Vanario-Alonso, C.E. (2002). Sharp borders from fuzzy gradients.  Trends Genet. 18(8): 385--387.

FBrf0151528

Review

Critical boundaries in the early Drosophila embryo are set by morphogenetic gradients. A new quantitative study shows that the placement of one such boundary is more accurate than the gradient thought to set it. Genetic analysis of the accuracy of the process implicates a gene not previously thought to be involved.