XY/Dp(1;Y)BarSVy+ males have a larger eye size than X/Dp(1;Y)BarSVy+ males.
Eleven BSVYy+ chromosomes of independent origin (The Seattle-La Jolla Drosophila Laboratories, 1971, D. I. S. 47, supplement) produce a larger eye size in XY/Y males than in X/Y males.