Figure 5.

Hybrid dysgenesis in Drosophila simulans in Japan. (a) Fraction of dysgenic F1 females for TSM lines in both directions of each set of reciprocal crosses, with RM1 female (positive direction) and with RM1 males (negative direction). Crosses were performed at 29°C (red bar) and 25°C (gray bar). **Difference in the numbers of normal and dysgenic females was significant between the reciprocal crosses (FET, p < 0.01). See Supporting information Table S2 for detail. (b) A–A* graph of Hikone15 lines. Each dot indicates the dysgenic properties of one line. Dots gathered along the vertical axis, implying that they have higher inducibilities (more than 10% of the cross A GD%) and no, if any, susceptibilities (<10% of cross A* GD%), thus DI strains. See Supporting information Table S3 for detail. n: the number of lines examined