Table 1. Relationship between genotype (presence/absence of amhy) and the phenotypic sex in wild-caught and laboratory-reared (rearing at 22° during the period of sex determination/differentiation) H. tsurugae.
| Phenotypic Sex | Genotype | Total | |
|---|---|---|---|
| amhy+ (%) | amhy− (%) | ||
| Wild-caught (P < 0.0001)a | |||
| Testis | 24 (96.0) | 1 (4.0) | 25 (31.9%) |
| Ovary | 5 (8.9) | 51 (91.1) | 56 (69.1%) |
| Total | 29 (35.8) | 52 (64.2) | 81 |
| Laboratory-reared (P < 0.0001)a | |||
| Testis | 26 (96.0) | 1 (4.0) | 27 (57.4%) |
| Ovary | 4 (20.0) | 16 (80.0) | 20 (42.6%) |
| Total | 30 (63.8) | 17 (36.2) | 47 |
a
Significant association between genotype and sex phenotype (Yates’ continuity corrected Chi-square test).