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Summary
Description
A phylogenetic tree of living things, based on RNA data and proposed by Carl Woese, showing the separation of bacteria, archaea, and eukaryotes. Trees constructed with other genes are generally similar, although they may place some early-branching groups very differently, thanks to long branch attraction. The exact relationships of the three domains are still being debated, as is the position of the root of the tree. It has also been suggested that due to lateral gene transfer, a tree may not be the best representation of the genetic relationships of all organisms. For instance some genetic evidence suggests that eukaryotes evolved from the union of some bacteria and archaea (one becoming the nucleus and the other the main cell).
French version : Image:Phylogenetic_tree-fr.svg bitmap version : Image:PhylogeneticTree.png
Français :
Sujet : Arbre phylogénétique hypothétique de tous les organismes vivants. L'arbre est basé sur des séquences de l'fr:ARNr 16S. À l'origine proposé par fr:Carl Woese, il montre l'histoire évolutive des trois domaines du vivant (fr:bactéries, fr:archaea et fr:eucaryotes) ;
Source : NASA Astrobiology Institute – basé sur une image trouvée dans un article ;
Auteur : Eric Gaba (fr:Sting) ;
Date : Septembre 2006 ;
Autres versions :
francophone : Image:Phylogenetic_tree-fr.svg ;
bitmap : Image:PhylogeneticTree.png.
English:This picture was improved or created by the Wikigraphists of the Graphics Lab. You can propose images to clean up and improve as well.
Français :Cette image a été améliorée ou créée par les Wikigraphistes de l'Atelier graphique. Vous pouvez également y proposer des images à améliorer.
Licensing
I, the author of this work, hereby release it into the public domain. This applies worldwide.
In case this is not legally possible: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
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