Observation of multiple tumor foci in p53/nf1/suz12-deficient zebrafish lines. (A) Fluorescence microscopy image of an adult p53+/−, nf1b−/−, nf1a+/−, suz12a+/−, suz12b+/− fish bearing two independent GFP-positive tumors in abdominal and anal locations. (B) Proportion of fish with multiple lesions in different suz12-mutant populations with additional p53+/−, nf1b−/−, nf1a+/− or p53+/−, nf1b−/−, nf1a+/+ backgrounds. Data are mean±s.d. of populations with any combination of three out of four (suz12+/−/−/−), two out of four (suz12+/+/−/−), or one out of four (suz12+/+/+/−) suz12 alleles knocked out. The total number of fish analyzed is indicated (n). P-values were calculated using Student's t-tests. (C) Representative HE-stained sections of p53/nf1/suz12-deficient fish with two separate tumor foci. Squares indicate areas shown in magnified images below.
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