Table 1 Comparison of viral tracers and methods of retrograde tracing
Method/virus | Efficiency | Preparation | Toxicity | Brain region selectivity | Cell-type-specific |
|---|---|---|---|---|---|
AAV2-retro | High | Easy | Low | Yes | Yes |
AAV & AAVR | Medium | Easy | Low | No | Yes |
CAV2 | Low | Easy | Low | Yes | Yes |
CAV2 & CAR | Medium | Easy | Low | No | Yes |
RV-ΔG(N2cG) | High | Easy | High | No | No |
PARTS | High | Easy | High | No | No |
cPARTS | High | Easy | High | No | Yes |