The Endoreduplication Cell Cycle: Regulation and Function

摘要: The endoreduplication cell cycle is a variant of the standard mitotic in which reiteratedrounds DNA synthesis occur absence chromosome segregation and division. resultingpolyploid cells are frequently found plants often tissues with high metabolic activitythat accumulate storage molecules. In this chapter we review current understanding regulatorymechanisms involved modification cycle, based on generally accepted templatefor plant control, that bring about endoreduplication, as well influence phytohormonesand epigenetic factors. regulation described two model systems: developingmaize endosperm leaf trichome Arabidopsis. addition, wediscuss biological relevance several proposed functions specialized cycle.