> Chapter 6 contents

figure6-27a.jpg figure6-27b.jpg
Figure 6-27.
(A) Photomicrograph of the tail region of a stage 23 embryo. The arrow indicates the intermediate cell mass. (B) Expression of gata-1 mRNA in a stage 21 medaka embryo. At this stage, the immature intermediate cell mass can be detected in the paraxial mesoderm of the posterior region of the embryo.