Table 1.
Summary of cell numbers in clusters that contain class A neurons.
| “P1/pC1” | “TN1” | “Abg” | ||||
|---|---|---|---|---|---|---|
| Sex | ♂ | ♀ | ♂ | ♀ | ♂ | ♀ |
| Overlap of dsx and fru (class A) | 18*1 [25], 34 [28] | 0*2 [31] | 9 [25], 17 [28] | N.D. | 112*3, 6 [24] | N.D. |
| dsx-expressing (class A+B) | 30–50 [17], 53 [19], 57 [18], 65 [27], 83*1 [25] | 5 [27], 8 [19], 9 [18], 16*1 [25] | 15 [25], 18–24 [17], 22 [18], 23 [19] | 0 [25], 0 [18], 0 [19] | 200–300*6 [17], 231*3, 6 [24], 254*6 [18], 275*6 [19] | 300*6 [18], 315*6 [19] |
| fru-expressing (class A+C) | 21 [29], 38 [23], 48 [27], 73 [15], 97, 177*4 [16] | 7 [27], 9 [23], 163*4 [16] | 83 [15], 105, 136 [28] 235, 441*5 [16] | 112 [28] 395*5 [16] | 91 [15], 112*3, 6 [24], 244, 504*6 [16] | 516*6 [16] |
Cell numbers (bold letters) are based on either immunohistrochemistry or genetic reagents targeting fru- or dsx-expressing neurons (such as knock-in alleles for either gene). Numbers are rounded to the closest integer. Unless otherwise noted, cell numbers are per hemibrain and counted at the adult stage. N.D., no data.
*1
Cells include nearby “pC2” cluster.
*2
Inferred by the absence of overlap between fru and dsx gene products.
*3
Cells counted at two-day old pupal stage.
*4
Cells include other neurons positioned posteriorly.
*5
Cells include other neurons positions in pro- and meso-thoracic ganglia.
*6
Cell numbers represent the total number from both hemibrains.