Generation of sacs-null mutant zebrafish. (A) Sequencing chromatographs of control and sacs-null mutant (sacs?/?)specimens and alleles. The red rectangle define frameshift mutation in exon 7. The arrow indicates the area of the induced deletion. (B) qRT-PCR analysis revealed a decrease in the level of sacs mRNA expression, normalized to ?-actin. Three independent RNA samples from sacs?/? mutant larvae at 120 hpf and from controls were analyzed. * p ? 0.05, calculated by Student?s t-test. (C) Lateral view photographs of representative control and sacs?/? specimens. (D) No dysmorphology and full length was noted at 120 hpf, but (E) homozygous larvae showed slight but significant ?microphthalmia?, **** p ? 0.00001, calculated by Mann-Whitney test. The values are expressed as mean ± standard deviation (SD). Abbreviations: n, total number of evaluated embryos; error bars indicate standard errors of the means; ns, not significant.
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