Table 1.
The vulva signals the gonadal arms to extend ventrally
| Tissue ablated | Cells ablated | Developmental time, h after hatching | No. of gonadal arms scored | % of gonadal arms that fail to extend ventrally |
|---|---|---|---|---|
| None | None | N/A | 260 | 31 |
| A gonadal arm | Z1 or Z4 | 1–2 | 42 | 76 |
| Vulva | P(5–7).p + P8.p | 1–2 | 20 | 100 |
| Vulva | P(5–7).p | 1–2 | 68 | 100 |
| Vulva | P(5–7).p | 18–20 | 38 | 92 |
| Vulva | P(5–7).pxx* | 26–28 | 32 | 81 |
| Vulva | P(5,6).p, P(5,7).p, P(5,8).p, P(6,7).p, P(6,8).p, or P(7,8).p | 1–2 | 136 | 54 |
| Vulva | P5.p, P6.p, P7.p, or P8.p | 1–2 | 88 | 27 |
| Neurons | P(5–8).a | 1–2 | 32 | 28 |
| Muscles | M cell | 1–2 | 40 | 33 |
| Somatic gonad | Z1.p and Z4.a | 8–10 | 36 | 28 |
*By the time of the ablation the VPCs P(5–7).p have undergone between one and two cell divisions. As a result, it is the two to four descendants from each VPC that were killed.