The expression pattern of
tbx-8 closely resembled that of
tbx-9, but the expression intensity of
tbx-8 was weaker than that of
tbx-9. No signal for
tbx-8 was detected in the E cell at the 8-cell stage. This may result from low intensity of the
tbx-8 signal in the E cell because the expression of
tbx-8 was observed in the Ea and Ep cells. Differences in the expression patterns between
tbx-8 and
tbx-9 could not be found after this stage.