A progenitor cell is a precursor with relatively restricted differentiation potential and, generally, more limited self-renewal than a stem cell. Usage depends on the lineage and assay; an expression marker alone does not establish renewal capacity.
An experimentally induced cell resembling an embryonic primordial germ cell by molecular and developmental criteria. Similarity should be stated separately from demonstrated gamete-forming function.
One of the early germline precursor cells formed at the embryonic poles in Drosophila melanogaster, normally at the posterior where germ plasm is assembled.
An early embryonic germline precursor that will contribute to future gametes. Expression of one germ-cell-associated marker alone does not demonstrate full developmental function.
A progenitor cell with competence for neural and mesodermal development, particularly spinal cord and paraxial mesoderm. Shared markers indicate cell state; demonstrating realised bipotency requires clonal lineage tracing.
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