Conference proceedings article
Endosymbiosis, cell evolution, and speciation



Publication Details
Authors:
Kutschera, U.
Publication year:
2005
Journal:
Theorie in den Biowissenschaften / Theory in Biosciences
Pages range:
1-24
Volume number:
124
Start page:
1
End page:
24
ISSN:
1431-7613

Abstract
In 1905, the Russian biologist C. Mereschkowsky postulated that plastids (e.g., chloroplasts) are the evolutionary descendants of endosymbiotic cyanobacteria-like organisms. In 1927, I. Wallin explicitly postulated that mitochondria likewise evolved from once free-living bacteria. Here, we summarize the history of these endosymbiotic concepts to their modern-day derivative, the "serial endosymbiosis theory", which collectively expound on the origin of eukaryotic cell organelles (plastids, mitochondria) and subsequent endosymbiotic events. Additionally, we review recent hypotheses about the origin of the nucleus. Model systems for the study of "endosymbiosis in action" are also described, and the hypothesis that symbiogenesis may contribute to the generation of new species is critically assessed with special reference to the secondary and tertiary endosymbiosis (macroevolution) of unicellular eukaryotic algae. (C) 2005 Elsevier GmbH. All rights reserved.


Authors/Editors

Last updated on 2019-01-11 at 16:06