Second Chromosome Heterochromatic Free Duplications | Male Progeny | ||||
---|---|---|---|---|---|

l(1)v231/0; Dp(2)*y^{+}^{b} | ywf/0; Dp(2)*y^{+} | χ^{2} | P-value | r.m.v.%^{a} | |

Dp(2) e51 | 101 | 391 | 170.93 | < 0.001 | 25.8 |

Dp(2) e58 | 221 | 413 | 58.15 | < 0.001 | 53.5 |

Dp(2) e97 | 326 | 563 | 63.18 | < 0.001 | 57.9 |

The results are of crosses of heterozygous

*l(1)v231/ywf*females for males carrying the attached-*XY*chromosome,*Y*,^{s}X.Y^{L}*In(1)EN yB*and the indicated heterochromatic free duplication of the second chromosome.↵a The suppression effect is expressed as relative male viability (%) =

↵b

*Dp(2)*y*= second chromosome heterochromatic free duplications.^{+}