Figure 3

Figure 3

Temporal and spatial expression patterns of cdc27 in developing zebrafish embryos. In situ hybridization (ISH) results depict the dynamic expression pattern of cdc27 from the 1-cell stage through to 4 days post-fertilization (dpf), with images presented in both lateral and ventral views. Initially, at the 1-cell stage extending to 10 h post-fertilization (hpf), cdc27 is broadly expressed throughout the entire embryo. By 1 dpf, there is a notable upsurge in cdc27 expression, particularly in the head, eyes, trunk, and heart regions. As development progresses to 2 dpf, cdc27 expression becomes significantly concentrated in the pharyngeal arch region. This focused expression pattern in the pharyngeal arch region becomes even more pronounced from 3 to 4 dpf, underscoring the potential importance of cdc27 in the development of these specific anatomical structures.