Range of xenogeneic donors whose hematopoietic cells can form colonies on macrophage layer of mice

The colony-forming ability of hematopoietic cells derived from 18 species of rodents was examined on the mouse macrophage layer which formed on a cellulose acetate membrane inserted into the peritoneal cavity of mice. Bone marrow cells of 12 xenogeneic species made a considerable number of colonies on the mouse macrophage layer. However, there was no parallelism between the colony-forming ability of the cells and donor's taxonomic relationship to the mouse.