TABLE 1

Transmission of mini-X chromosomes in the male germline

FemalesMales
Mini-XXyy+y wy+ wNaTbTMcF/Md
Dp1187y275124962280194494710.9380.9541.06
Dp1187y w190918041876178973780.9740.991
Dp11y55847650449520330.9550.9560.975
Dp11y w157614641540139459740.9571.03
Dp12y10629711103104841840.9820.9520.962
Dp12y w192216681806161970050.9380.968
Dp61y412839154071368815,8020.9620.9561.04
Dp61y w264523512742248910,2270.9470.979
Dp62y438038014115360115,8970.9310.9460.992
Dp62y w394036063916367815,1400.9620.974
Dp11 + Dp12 + Dp61 + Dp620.951
  • X/Y/Dp (1Dp) males carrying the indicated X, an unmarked Y chromosome, and the indicated Dp were crossed to y w females. All Dps carry y+. To restrict testing to 1Dp males, all tested males were progeny of single-male crosses between Dp-bearing males from the respective stocks and y/y or y w/y w females that yielded y+ progeny fractions ≤0.55.

  • a N, number of progeny scored.

  • b T = 2(y+/N).

  • c TM, mean T for two replicates.

  • d F/M = ratio of Dp recovery in females (F) vs. males (M) = (y+/y (F))/(y+/y (M)).