increased histone H2A phosphorylation during vegetative growth increased histone H2A phosphorylation at highly transcribed RNA polymerase II genes during vegetative growth 2016-11-04T14:38:13Z FYPO:0005770 increased histone H2A phosphorylation at highly transcribed RNA polymerase II genes during mitotic cell cycle midori A cellular process phenotype observed in the vegetative growth phase of the life cycle in which histone H2A phosphorylation occurs to a greater extent than normal in regions where RNA polymerase II actively transcribes genes. All histone H2A phosphorylation may be affected, or phosphorylation of specific sites on histone H2A may be increased.