Fig. 2. Adult blood characterization in cia^tu25f and cia^iu089. (A,B) Wright-Giemsa staining of peripheral blood collected from wild-type zebrafish adults and cia shows that mutant red blood cells are visibly microcytosed, and reveals the presence of undifferentiated cells (arrows) in circulation. (C,D) Kidney samples from wild-type and cia adults shows an increased number of erythroid precursors of cia mutants, as well as markedly increased cellularity. Scale bars: 20 µm in A,B; 40 µm in C,D.