1C) and reactive astrocytes (heavily stained by antibodies against GFAP;Fig
1C) and reactive astrocytes (heavily stained by antibodies against GFAP;Fig. Chx10-positive V2a neurons are lost and there is no reduction in the number of V1-derived Renshaw cells. Using two complementary methods, we show that this represents an exacerbation of a normal, underlying developmental pattern: The extent of each populations decrease inPcdh-mutants is precisely commensurate both…