Fig. 6
(A-D) PMs in nr2f1awt; nr2f2wt, nr2f1amut; nr2f2wt, nr2f1amut; nr2f2het, and nr2f1amut; nr2f2mut embryos with the actc1b:GFP transgene at 96 hpf. IHC was performed for GFP. Views are lateral with anterior to the left and dorsal up. Arrows in C and D indicate largely absent protractor pectoralis (pp). Brackets in C and D indicate 1st and 2nd arch PMs. ah–adductor hyoideus, ao–adductor operculi, do–dilator operculi, lap–levator arcus palitini. Muscle nomenclature used is from [55]. (E) Percentage of nr2f1actrl; nr2f2ctrl (n = 18), nr2f1amut; nr2f2wt (n = 10), nr2f1amut; nr2f2het (n = 29), and nr2f1amut;nr2f2mut (n = 15) embryos with loss or malformed pp muscles at 96 hpf.