NO PLANT ARRESTS. “Meiotic arrests in plants are unknown. Plants seem to completely lack strict mechanisms to arrest the meiotic cell division. Contrary to animals and fungi that for example arrest the cell cycle and abort meiosis once double strand breaks are not repaired, plants will progress through meiosis irrespective of such major defects.”
http://biorxiv.org/content/biorxiv/early/2016/04/28/050831.full.pdf