Expression or not of Dpp two different populations of growing cells in Drosophila

Abstract

Dpp is a growth factor that induces growth in relation with its absolute celular amount (Martín-Castellano and Edgar, 2002). However, there is other evidence respect to the growth function of Dpp that is to repress a negative represors of growth, brinker (brk) (Martín et al., 2004). Anyhow, Dpp it is supposed to be disposed in a gradient and to act in relation with its levels. When sharp differences in Dpp activity were produced,