Cytomixis is migration of the nuclei from one plant cell to another through intercellular channels of a special type (cytomictic channels), differing from plasmodesmata in their structure and size.[1] This unique phenomenon was discovered over a century ago.[2][3] Intercellular migration of nuclei has been observed in manifold types of plant tissues, for example, apical meristem cells of woody plants[4] and vegetative tissues of the anther.[5] However, cytomixis is most frequently detectable in microsporogenesis.[6][7] Сytomixis can be involved in the evolutionary processes due to production of unreduced gametes or gametes with varying chromosome numbers.[8][9][10][11] To date cytomixis was found in microsporogenesis of over 400 plant species belonging to 84 families.[12]
