Wikipedia
CFU-GEMM
CFU-GEMM is a colony forming unit that generates myeloid cells. CFU-GEMM cells are the multipotential progenitor cells for myeloid cells; they are thus also called common myeloid progenitor cells or myeloid stem cells. "GEMM" stands for granulocyte, erythrocyte, monocyte, megakaryocyte.
The common myeloid progenitor (CMP) and the common lymphoid progenitor (CLP) are the first branch of cell differentiation in hematopoiesis after the hemocytoblast ( hematopoietic stem cell).