Rpl18 deficiency impaired the erythroid maturation.a WISH showed that expression levels of gata1 in rpl18−/− embryos was slightly increased at 24 and 30 hpf (N = 3). b Relative expression of gata1 mRNA was analyzed by qRT-PCR for rpl18 siblings and mutants (N = 3). *P < 0.05. c Western blot (WB) analysis was performed to determine Gata1 protein level. WB with Gata1 antibody demonstrated its reduction in rpl18−/− mutants at 24 and 30 hpf. d The scatter diagram represented quantification of WB. Compared with siblings, the expression of Gata1 protein in mutants decreased by about 40%. The results of three groups of experiments (each experiment was repeated twice) were statistically analyzed, *P < 0.05. WISH showed that expression levels of hbae1.1 (e) and hbbe1.1 (f) in mutants were unaffected at 24 hpf, but reduced significantly from 36 hpf (N = 3). Scale bars represent 250 μm. g Wright–Giemsa staining of isolated erythroid cells collected from zebrafish embryos at 2.5 dpf. The nucleoli size of erythrocyte in rpl18 mutants was much larger than siblings (N = 4). Scale bars represent 10 μm.
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