Figure 7. A temporal summary of the expression patterns of xPer1, xPer2, xBmal1, and Nocturnin.

The approximate stages of development are represented on the horizontal axis of this figure while the particular tissues and organs are listed on the vertical axis. xPer1 is represented by the blue lines, xPer2 by the green lines, xBmal1 by the red lines, and Nocturnin by the black lines. Dotted lines indicate times during development when a gene may be present, but was not confirmed through sectioning or additional whole mount in situ analysis.