[Centrioles in mouse bone marrow megakaryocytes]

In immature megakaryocytes, centriolar complexes have been observed with 8, 16, or 32 centrioles. In maturing and trombopoetic megakaryocytes, such a centriolar complex is absent, and individual centrioles lie separately in the cytoplasm. It is suggested that the quantitiy of centrioles in the centriolar complex correlates with the cell ploidy, and that only the cells with potential ability to divide have the centriolar complex.