exosc8 and exosc9 homozygous mutant zebrafish develop muscular atrophy.
Immunofluorescence in 5-dpf wild-type, exosc8 homozygous mutant, and exosc9 homozygous mutant zebrafish larvae with phalloidin conjugated to Alexa Fluor 594. Phalloidin staining at 5 dpf showed that the exosc8 (c.26_27del) and exosc9 (c.198_208del) homozygous larvae appeared to have thinner tails than WT and heterozygous clutchmates (representative images shown here). Muscle fibres appeared disorganized and not straight with gaps between fibres in the exosc8 (c.26_27del) and exosc9 (c.198_208del) homozygous larvae compared with WT and heterozygous clutchmates. Scale bar: 50 μm.