Additional file 1: of Pattern of fin rays along the antero-posterior axis based on their connection to distal radials

Skeletal anatomy of the zebrafish pectoral fin at 21 dpf and 24 dpf. A-A”. Osteoblast cells (sp7:mcherry) and chondrogenic cells (col2a:EGFP) of the cranial region were observed at 21 dpf. B-B″. Magnified view of the pectoral fin in A-A”. C-C″. Osteoblast and chondrogenic cells of the pectoral fin at 24 dpf. Numbers in B and C indicate the fin rays and their order. Arrowheads with dr1–3 indicate the distal radials and their order. Scale bars in A, B, C indicate 500 μm, 200 μm and 200 μm, respectively. (TIF 4027 kb)