Nature 458, 651–654 (2009)

In Figure 4 of this Letter, panel b (fgfr1 MO, sox17 in situ) was inadvertently duplicated in panel a (WT uninj., sox17 in situ) during figure revision and assembly. The corrected Figure panels are shown below. This does not alter the data indicating that sox17 expression is not affected in fgfr1 MO, or any of the conclusions of the work presented in the manuscript.

Figure 1
figure 1