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. Author manuscript; available in PMC: 2017 Feb 16.
Published in final edited form as: Dev Biol. 2015 Oct 3;407(2):195–210. doi: 10.1016/j.ydbio.2015.09.016

Table 3.

PAA formation in Fn1flox/−; Isl1Cre mutants.

Embryo
number		 Number of
somites		 Method of analysis Right 4th PAA Left 4th PAA
1 36–40 PECAM1/confocal Thin Thin
2 36–40 PECAM1/confocal Thin 4th PA absent
3 36–40 PECAM1/confocal Grossly normal Thin
4 36 PECAM1/confocal Grossly normal Grossly normal
5 36 PECAM1/confocal Grossly normal Grossly normal
6 37 PECAM1/confocal Grossly normal Grossly normal
7 36–40 PECAM1/confocal Grossly normal Grossly normal
8 36–40 PECAM1/confocal Grossly normal Grossly normal
9 36–40 PECAM1/confocal Grossly normal Grossly normal
10 36–40 PECAM1/confocal Grossly normal Grossly normal
11 3 6 –40 PECAM1/confocal Grossly normal Grossly normal
12 36–40 PECAM1/confocal Grossly normal Grossly normal
13 36 Intracardiac ink injection Thin Grossly normal
14 37 Intracardiac ink injection Thin Grossly normal
15 36–40 Intracardiac ink injection Thin Grossly normal
16 36–40 Intracardiac ink injection Thin Grossly normal
17 3 6 –40 Intracardiac ink injection Thin Grossly normal

Penetrance: 8/18=44%(embryos); 9/35=26% (pharyngeal arches)