Table 13. Coexpression of Pax6 and Tbr2 in mitotic cells.

Macaque age	Total Pax6+ mitoses	Total Tbr2+ mitoses	Total Pax6+ Tbr2+ mitoses	Percentage of Pax6+ mitoses that are Tbr2+	Percentage of Tbr2+ mitoses that are Pax6+
E50	176	47	30	17% (30/176)	64% (30/47)
E65	244	122	120	49% (120/244)	98% (120/122)
E80	72	37	37	51% (37/72)	100% (37/37)
E100	38	20	17	45% (17/38)	85% (17/20)

Numbers represent the coexpression of Pax6 and Tbr2 by mitotic cells in the developing somatosensory cortex in each species. Cells were identified by Pax6 and/or Tbr2 immunoreactivity in a minimum of three 200 µm radial unit sections from each age in each species. Mitoses were identified by condensed chromatin in DAPI stained tissue. Numbers in parentheses indicate the total number of mitotic cells of each type (Pax6 or Tbr2) that coexpress both proteins.