TABLE 1

Control crosses between D. melanogaster and the two “sib” species, D. mauritiana and D. simulans

CrossTemp.FemalesMales
mel Oregon-R × maur Synthetic22°7040
18°3350
maur Synthetic × mel Oregon-R22°0410
18°152
mel y1 Hmr v × maur Synthetic22°391144
18°6811
mel Oregon-R × sim Ro/ +22°4092a
mel Oregon-R × sim v m22°2970
sim Ro/ + × mel Oregon-R22°52626
sim v m × mel Oregon-R22°151388
mel y1 Hmr v × sim Ro/ +22°2530b
mel y1 Hmr v × sim v m22°21014
mel w−6613.4 × sim Lhr22°227184
  • a Males presumably resulted from maternal nondisjunction, yielding viable Xsim/ 0 males.

  • b Hmr's rescue is much weaker with sim than maur (Hutter and Ashburner 1987). No males were rescued when using the sim Ro/ + stock, although weak rescue occurs with sim v m.