Arabidopsis thaliana
Hybrid vigour (heterosis) has been used for decades in crop industries, especially in the production of maize and rice. Hybrid varieties usually exceed their parents in plant biomass and seed yield. But the molecular basis of hybrid vigour is not fully understood. Previous studies have suggested that epigenetic systems could play a role in heterosis. In this project, we investigated genome-wide patterns of four histone marks in Arabidopsis hybrids at a germination stage of seeds.