Misschien heb je nog wat aan deze link (PRO):
http://www.hhmi.ucla.edu/C168/week2/pj5.html
En dan dit artikel:
"Mitochondrial evolution."; Gray MW, Burger G, Lang BF.; Science. 1999 Mar 5;283(5407):1476-81.
abstract
Mitochondrial evolution.
Gray MW, Burger G, Lang BF.
Department of Biochemistry, Dalhousie University, Halifax, Nova Scotia B3H 4H7, Canada.
The serial endosymbiosis theory is a favored model for explaining the origin of mitochondria, a defining event in the evolution of eukaryotic cells. As usually described, this theory posits that mitochondria are the direct descendants of a bacterial endosymbiont that became established at an early stage in a nucleus-containing (but amitochondriate) host cell. Gene sequence data strongly support a monophyletic origin of the mitochondrion from a eubacterial ancestor shared with a subgroup of the alpha-Proteobacteria. However, recent studies of unicellular eukaryotes (protists), some of them little known, have provided insights that challenge the traditional serial endosymbiosis-based view of how the eukaryotic cell and its mitochondrion came to be. These data indicate that the mitochondrion arose in a common ancestor of all extant eukaryotes and raise the possibility that this organelle originated at essentially the same time as the nuclear component of the eukaryotic cell rather than in a separate, subsequent event.
Volgens de Serial Endosymbiosis Theory (SET) zijn eukaryoten ontstaan dmv. endosymbiose van prokaryoten. Deze theorie wordt tegenwoordig redelijk algemeen geaccepteerd waardoor het moeilijk is om kritiek op deze theorie te vinden. Ik ben nu bezig met een essay over dit onderwerp en ben dus op zoek naar tegenargumenten die goed onderbouwd zijn. Of is er iemand die weet waar ik artikels of uitspraken van critici kan vinden die deze theorie niet handhaven?
