Chemical and photometric evolution models for disk, irregular and low
  mass galaxies
  We summarize the updated set of multiphase chemical evolution models
performed with 44 theoretical radial mass initial distributions and 10 possible
values of efficiencies to form molecular clouds and stars. We present the
results about the infall rate histories, the formation of the disk, and the
evolution of the radial distributions of diffuse and molecular gas surface
density, stellar profile, star formation rate surface density and elemental
abundances of C,N, O and Fe, finding that the radial gradients for these
elements begin very steeper, and flatten with increasing time or decreasing
redshift, although the outer disks always show a certain flattening for all
times. With the resulting star formation and enrichment histories, we calculate
the spectral energy distributions (SEDs) for each radial region by using the
ones for single stellar populations resulting from the evolutive synthesis
model {\sc popstar}. With these SEDs we may compute finally the broad band
magnitudes and colors radial distributions in the Johnson and in the SLOAN/SDSS
systems which are the main result of this work. We present the evolution of
these brightness and color profiles with the redshift.
