期刊
JOURNAL OF THEORETICAL BIOLOGY
卷 243, 期 1, 页码 54-63出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jtbi.2006.05.015
关键词
eukaryote evolution; nucleus; meiosis; mitosis; eukaryotic cell cycle; viral eukaryogenesis theory; lysogeny; plasmid partitioning; origin of sex; compatibility; virus
The origin of the eukaryotic cell cycle, including mitosis, meiosis, and sex are as yet unresolved aspects of the evolution of the eukaryotes. The wide phylogenetic distribution of both mitosis and meiosis suggest that these processes are integrally related to the origin of the earliest eukaryotic cells. According to the viral eukaryogenesis (VE) hypothesis, the eukaryotes are a composite of three phylogenetically unrelated organisms: a viral lysogen that evolved into the nucleus, an archaeal cell that evolved into the eukaryotic cytoplasm, and an alpha-proteobacterium that evolved into the mitochondria. In the extended VE hypothesis presented here, the eukaryotic cell cycle arises as a consequence of the derivation of the nucleus from a lysogenic DNA virus. (c) 2006 Elsevier Ltd. All rights reserved.
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