Table 2.
Genetic structure analysis of pectinodontids using the COI gene (517 bp), showing the fixation index (Fst). OT, Okinawa Trough; SB, Sagami Bay; SCS, South China Sea. N, sample size. Significant differences (p < 0.05) shown in italics.
| genus | N | locality | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Bathyacmaea | 23 | Off Hatsushima (SB, seep) | 1 | — | |||||||
| 18 | Iheya North Knoll (OT, vent) | 2 | 0.0352 | — | |||||||
| 15 | Izena Hole (OT, vent) | 3 | 0.0827 | −0.0038 | — | ||||||
| 10 | Hatoma Knoll (OT, vent) | 4 | −0.0087 | −0.0004 | 0.0426 | — | |||||
| 11 | Dai-Yon Yonaguni Knoll (OT, vent) | 5 | −0.0015 | −0.0433 | 0.0135 | −0.0447 | — | ||||
| 4 | Jiaolong Ridge (SCS, seep) | 6 | 0.3104 | 0.2664 | 0.1391 | 0.3277 | 0.3684 | — | |||
| Serradonta | 10 | Off Hatsushima (SB, seep) | 7 | 0.0279 | 0.0393 | 0.0100 | 0.0216 | 0.0173 | 0.1867 | — | |
| 2 | Iheya North Knoll (OT, vent) | 8 | −0.1236 | −0.1392 | 0.0476 | −0.2209 | −0.1425 | 0.7108 | 0.0486 | — |