Click on image to view larger version.

Fig. 9. NCC fate mapping. E9.5 embryos carrying the ROSA26 Cre reporter were
stained for ß-galactosidase activity. (A,B) Wholemounts. (A, left)
PDGFR
fl/+;Wnt1Cre+. (A, right)
PDGFR
fl/fl;Wnt1Cre+. (B) Higher magnification of
the migrating NCCs in the PDGFR
fl/fl;Wnt1Cre+
embryo. Arrows indicate NCCs that have migrated to form part of the peripheral
nervous system. (C,D) Transverse sections through conotruncal area of (C)
PDGFR
fl/+;Wnt1Cre+ and (D)
PDGFR
fl/fl;Wnt1Cre+ embryos. Arrows indicate NCCs
migrating into the truncus arteriosus. Abbreviations: s, aortic sac; ta,
truncus arteriosus.