期刊
SEXUAL PLANT REPRODUCTION
卷 22, 期 4, 页码 207-219出版社
SPRINGER
DOI: 10.1007/s00497-009-0105-4
关键词
Cell cycle; Endosperm; Retinoblastoma; Endoreduplication; Imprinting
资金
- US Department of Energy [DE-FG02-96ER20242]
- Pioneer Hi-Bred Inc
Development of the seed endosperm involves several different types of coordinated cell cycle programs: acytokinetic mitosis, which produces a syncytium soon after fertilization; cellularization through the formation of modified phragmoplasts; cell proliferation, in which mitosis is coupled to cell division; and, in certain species like cereal crops, endoreduplication. Understanding the regulation of these programs and their transitions is challenging, but it has the potential to define important links between the cell cycle, cell differentiation and development, as well as provide tools for the manipulation of seed yield. A relatively large number of mutants display endosperm proliferation defects, and connections with known cell cycle genes are beginning to emerge. For example, it is becoming increasingly evident that the master cell cycle regulators, the cyclin-dependent kinases and retinoblastoma-related families, play key roles in the events leading to endosperm formation and development. Recent studies highlight cross-talk between pathways controlling the cell cycle and genomic imprinting.
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