Complicating Bicoid
The Seven Stones has a good post on recent controversies on how Drosophila create their early embryo morphogen gradients; more specifically, how Bicoid’s gradient is set up. Turns out, the simplest model may not be the correct one (shocking, isn’t it?).
UPDATE: There’s also a nice paper (free PDF) by Stas Shvartsman on still another theory about the origins of the Bicoid gradient (not for the math-phobic) in Developmental Biology.
