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Fig. 5. Expression of TId1 (A) and TId2 (B) in trout embryo. (A)
Stage 16 embryo (45 somites), lateral view. Transcripts for TId1 are
localized in the tail bud (arrow), paraxial mesoderm and transiently in the
ventral and dorsal extremes of the neoformed somites (arrowheads). (B) Stage
16 embryo (40 somites), lateral view. Transcripts for TId2
concentrate in the dorsal domain of the somites (black arrowheads). A strong
signal is also apparent in the pronephros (white arrowheads). Scale bars: A,
300 µm; B, 250 µm.