GFP retroviral labeling of neurons in postnatal rat
| Age of injection, length of survival | Number of brains | Number of brains with labeled neurons in ctx | Total number of labeled neurons in ctx | Mean number of labeled neurons per brain |
|---|---|---|---|---|
| P2–P4, 3–14 d | 13 | 4 | 11 | 0.9 ± 0.4 |
| P2–P4, >21 d | 1 | 0 | ||
| P10–P19, 1–2 d | 19 | 5 | 29 | 1.5 ± 0.8 |
| P10–P19, 3–7 d | 58 | 37 | 537 | 9.3 ± 2.7 |
| P10–P19, 8–14 d | 18 | 12 | 65 | 3.6 ± 0.9 |
| P10–P19, >21 d | 14 | 0 | ||
| Adult, <21 d | 5 | 0 | ||
| Adult, >21 d | 6 | 0 | ||
| 134 | 58 | 642 | 5.9 ± 1.5 |
GFP+ cell labeling was analyzed in consecutive 40 μ m sagittal brain sections in frontoparietal cortex. Approximately 15–30 sections were examined per brain, spanning the mediolateral extent of the retrovirally labeled population. Means are reported as mean ± SEM. ctx, Neocortex.