Table 3 Examples of the different percentages of males produced by different male genotypes assuming that the population lacks Md-traD
Male Genotype% males in F1
IIIM/III50
XYM50
IIM/II;IIIM/III75
IIIM/III;XYM75
IIM/II;IIIM/III;/IVM/IV87.5
IIIM/III;IVM/IV;XYM87.5
IM/I;IIM/II;IIIM/III;IVM/IV93.4
IM/I;IIM/II;IIIM/III;IVM/IV;VM/V96.9
IIM/II;IIIM/IIIM;XYM100
IIIM/IIIM100
IIM/II;IIIM/IIIM100
IIM/IIM;IIIM/IIIM100
IIM/II;IIIM/IIIM;IVM/IV;XYM100
• Nearly all of these genotypes have been observed in field collected flies, although others exist as well (Hamm et al. 2005; Hamm and Scott 2008, 2009). In theory, any of the five autosomes could exhibit these genotypes and produce the same proportion of male offspring (e.g., IIIM/IIIM or VM/VM both produce only male progeny in the absence of Md-traD).