Table 3.
B family sex ratio in five families of Metriaclima lombardoi segregating B chromosomes.
| B Family | # of Males | # of Females | Sex Ratio | Binomial p-value |
|---|---|---|---|---|
| A008 | 1 | 19 | 0.05 | 0.00004** |
| A018 | 3 | 14 | 0.18 | 0.01273* |
| A035 | 4 | 9 | 0.31 | 0.26680 |
| A036 | 6 | 14 | 0.30 | 0.11530 |
| A038 | 5 | 18 | 0.22 | 0.01062* |
Sex ratio is reported as the percentage of male progeny. A binomial test, assuming a sex ratio of 0.5, was performed on each family. Families A008, A018 and A038 significantly (p-value ≤ 0.05) deviated from the expected 0.5 sex ratio with a bias towards females. Sex was determined by dissection and inspection of the gonads. Only individuals surviving to sexual maturity could be confirmed as male or female.