Fig. 8. Eya1/ placodal progenitor cells undergo
abnormal apoptosis. Transverse sections labeled with the TUNEL method for
detection of apoptotic cells showing a few apoptotic cells in the wild-type IX
(IXp, A) and X placodes (Xp, B) and more apoptotic cells in
Eya1/ IX and X placodes (arrow, C and D).
gIX and gX, IXth and Xth cranial ganglia.