The lower numbers of representative hematopoietic cells in the fetal livers of jmj^trap/trap embryos. The numbers of TER-119⁺ cells (A), CD45⁺ cells (B), and c-Kit⁺ cells (C) per fetal liver from 12.5 dpc to 14.5 dpc were estimated by flow cytometry. The numbers of MPO⁺ cells (D) and NSE⁺ cells (E) per fetal liver at 12.5 dpc were estimated by cytochemical analyses. (A through E) The open columns and circles indicate the average numbers of positive cells from jmj^+/+ andjmj^+/trap embryos, and the closed columns and circles indicate the average numbers fromjmj^trap/trap embryos. In all cases, more than three embryos were analyzed. The error bars indicate SEM.