The following is an excerpt.
If you prod a zebrafish embryo, it will normally twitch its tail and try to escape. By watching embryos that wouldn’t twitch properly, a team of scientists has discovered that a gene called STAC3 is the cause of a rare inherited muscle disorder called Native American myopathy (NAM). The team also showed that STAC3 plays an important and previously unrecognized role in muscle contractions.
Read the full story here: Muscle Disease Gene Identified in Fish