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Fig. 3. Expression of slow myosin light chain 1 (MyLC1; red) and cytochrome C
oxidase subunit IV (green) transcripts in 48 days post-fertilisation trout
larvae. Separate (A,B) and merged (C) immunofluorescence images of transverse
sections at the horizontal septum. Cytochrome c oxidase subunit IV
transcripts accumulate in slow MyLC1-expressing superficial muscle fibres
(arrows) and in lateral fast muscle fibres (arrowheads). Scale bars, 80
µm.