Fig.1. PMCs of the T. aestivum X P. huashanica hybrid. (1) A normal PMCs of the T. aestivum X P. huashanica F₁ hybrid, showing 28 univalents. (2) The PMCs of the T. aestivum X P. huashanica hybrid, chromonemata migration among PMCs through a very small opening (maybe a normal plasmodesmata) (3) Chromonemata transfer through conjugation opening observed in the T. aestivum X P. huashanica. (4) Walls of young pollen grain (a) and (b) are dissolving, the nucleus in pollen grain (a) is elongating toward pollen grain (b), the young pollen grain walls of (c) and (d) have dissolved and formed a giant pollen grain, the nuclei migration are taking place between (c) and (d). (5) The choromatin is transferring between pollen grains through conjugation opening. (6) The nucleus of cell (a) is transferring into cell (b) through conjugation opening.