Variations in length, branch number, and tectal coverage, reflecting the influence of neuronal activity on single axon morphology
| wt (n = 14) | mao (n = 12) | TTX (n = 11) | |
|---|---|---|---|
| Total branch length (μm) | 195.5 ± 154.5 | 125.7 ± 53.0 | 171.5 ± 124.3 |
| Branch number | 12.4 ± 7.4 | 11.9 ± 4.8 | 13.0 ± 5.2 |
| Tectal coverage (μm2) | 447.3 ± 337.9 | 691.9 ± 456.5 | 543.9 ± 494.5 |
| Length/branch (μm) | 15.4 ± 5.4 | 11.3 ± 5.4 | 14.7 ± 7.4 |
Average branch length of individual axons is decreased inmao mutants compared with wt (ANOVA, single-factor analysis;p < 0.05). The same trend is observed in TTX-injected activity-deprived larvae. Branch number and total branch length do not differ significantly.