Chiasma distribution in wild-type and osgen1 plants compared to hei10 and osgen1 hei10. A, Chiasma distribution in wild-type (blue; n = 168) and osgen1 (red; n = 170) PMCs. B, Chiasma distribution in hei10 (blue; n = 167) and osgen1 hei10 (red; n = 149) PMCs. C, Chiasmata frequency in the wild type (n = 63), osgen1 (n = 59), hei10 (n = 50), and osgen1 hei10 double mutant (n = 59).