(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.

Fig. 5. Myocyte differentiation in OFT of conditional mutants. (A-C)
Immunohistochemistry with an anti-
-smooth muscle actin antibody on
coronal sections of E12.5 control (Tbx1flox/) (A-C)
and conditional mutant (A'-C') embryos at the level of the conus
(A,A'), conal-truncal transition (B,B') and truncus (C,C').
Note the reduced immunoreactivity in conditional mutants (A'-C'),
especially at the conal-truncal transition. Scale bars: 100 µm.