Fig. 3.

Tissue-specific gene expression of bgp AS and mgp antisense (AS) in selected tissues of juvenile Atlantic salmon (S. salar L.). In the pectoral fin, expression was located in the osteoblasts lining the paired hemitrichia forming the lepidotrichia for both bgp (A,C,F; transverse section) and mgp (D; transverse section). In the gill (G,I; sagittal section), mgp expression was located in cells lining the cellular hyaline cartilage (zellknorpel) of the gill filament. Expression of mgp was also found in the dense connective tissue of the eyes (cornea) (J; transverse section) and in the dense connective tissue of the dermis of the skin (L; transverse section). For all tissues, no background signal was found using the sense probe [bgp/mgp sense (S)] for the genes (B,E,H,K,M). Scale bar: 100 μm. LCT, loose connective tissue; L, lepidothrichia; E, epidermis; HC, hyaline cartilage; DCT, dense connective tissue; BM, Bowman′s membrane; C, cornea, S, scale.