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Expression of candidate genes in zebrafish blood islands. Whole embryo in situ hybridization was performed on embryos at 24hpf. (A) Slc4a1 was used as control to delineate the intermediate cell mass (ICM, indicated by arrows). (B) Cloche (clo) embryos were used to show specificity of the hybridizations. (C–G) Candidates identified in this study.
