EPIGENETIC INTERACTIONS. “Both male and female reproductive cell lineages undergo meiosis to generate haploid spores that divide to form gametophytes, and a large number of genes have been identified regulating meiosis in Arabidopsis, many of them homologs of yeast meiotic genes. The principal interactions currently known to take place between the soma and germ cells at this time are, however, epigenetic.”
http://www.sciencedirect.com/science/article/pii/S1534580713000427