  The recent discovery of hidden non-axysimmetric and disk-like structures in
bright Virgo dwarf elliptical and lenticular galaxies (dE/dSph/dS0) indicates
that they may have late-type progenitors. Using N-body simulations we follow
the evolution of disk galaxies within a LambdaCDM cluster simulated with 10e7
particles, where the hierarchical growth and galaxy harassment are modeled
self-consistently. Most of the galaxies undergo significant morphological
transformation, even at the outskirts of the cluster, and move through the
Hubble sequence from late type disks to dwarf spheroidals. None of the disks
are completely destroyed therefore they can not be the progenitors of ultra
compact dwarf galaxies (UCDs). The time evolution of the simulated galaxies is
compared with unsharp-masked images obtained from VLT data and the projected
kinematics of our models with the latest high resolution spectroscopic studies
from the Keck and Palomar telescopes.
