Table 1 Summary of investigated median fin fold genes, their expression regions and corresponding references.

fras1

apical region of median fin fold

^{6, 31, 32}

hmcn1

epithelial cells of apical fin fold

^{6, 33}

hmcn2

fin fold epithelium and fin mesenchyme

^{6, 33}

bmp1a

osteoblasts, fin mesenchyme cells, floor plate, hypochord cells

^{34, 35}

fbln1

presomitic mesoderm cells, dorsal neural rod

^{33, 36}

and1

essential factor for actinotrichia formation, median fin fold epithelium

¹⁶