File:Origin of eukaryotes from prokaryotes.jpg

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The Origin of Eukaryotes from Prokaryotes by Time and Genetic Distance

Original file name: 1745-6150-6-35-2.jpg

This image schematically depicts how all cells originate from one common ancestor cell and how over time they have diverged and differentiated into different groups. However, it focuses on the endosymbiotic origin of eukaryotic cells from prokaryotic cells and how this transition is without a lineage-splitting event (not in stages) and more so a rapid evolution --Z3331556 (talk) 01:52, 18 March 2013 (EST)

Original legend: Endosymbiotic origin of eukaryotes by time and genetic distance. Schematic depiction of the chimeric origin of eukaryotes (in red) by (a) genetic distance and (b) time. Bacteria and archaea are shown to the left and right, respectively. Reticular networks of lateral gene transfer are not shown for simplicity, but characterise prokaryotic evolution. In (a) the unbranching red trunk depicts the prokaryote-eukaryote transition without any successful speciation (as attested by the absence of true evolutionary intermediates; see text) across the long genetic distance from an endosymbiotic origin in prokaryotes to LECA. In (b) the absence of this unbranching trunk depicts the short timescale and rapid evolution of LECA, driven by endosymbiotic gene transfer, a high mutation rate, cell fusions and genome doublings, accumulating traits within a single small population.

Reference

<pubmed>PMC3152533</pubmed>

Energetics and genetics across the prokaryote-eukaryote divide

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3152533/

Copyright

Copyright ©2011 Lane; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Note - This image was originally uploaded as part of a student project and may contain inaccuracies in either description or acknowledgements. Please contact the site coordinator if the uploaded content does not meet the original copyright permission or requirements, for immediate removal.

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current01:23, 18 March 2013Thumbnail for version as of 01:23, 18 March 2013600 × 267 (30 KB)Z3331556 (talk | contribs)Original file name: 1745-6150-6-35-2.jpg Energetics and genetics across the prokaryote-eukaryote divide http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3152533/ Endosymbiotic origin of eukaryotes by time and genetic distance. Schematic depiction of the c...
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