Evolutionary Origin and Adaptive Function of Meiosis
نویسندگان
چکیده
The origin of meiosis and its adaptive function in eukaryotes, and the related problem of the origin and adaptive function of sex in eukaryotes, are fundamental issues in biology. Among eukaryotes, meiosis and sexual reproduction are widespread, occurring in single-celled eukaryotes (including protozoans such as paramecium), and fungi (e.g. yeast) and in most multicellular organisms including animals and most plants. Accumulating evidence indicates that meiosis arose very early in the evolution of eukaryotes (reviewed in Bernstein & Bernstein, 2010). Thus, basic features of meiosis were likely already present in the prokaryotic ancestors of eukaryotes.
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