Cooperative View: New Evidence Suggests A Symbiogenetic Origin For The Centrosome

The origin of the centrosome has been controversial for many years. The theory of symbiogenesis as a mechanism of evolution has also stirred debate since it was introduced in the 1920s and subsequently elaborated in the 1960s by Lynn Margulis of University of Massachusetts, Amherst. Today, only two cellular components -- the mitochondria and the chloroplasts -- are generally accepted by evolutionary biologists as having a symbiogenetic origin. A new paper suggests that centrosomes are another likely candidate.

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