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Citation for Study 11689

Citation title: "Multigene phylogenies of diverse Carpediemonas-like organisms identify the closest relatives of ?amitochondriate? diplomonads and retortamonads".

Study name: "Multigene phylogenies of diverse Carpediemonas-like organisms identify the closest relatives of ?amitochondriate? diplomonads and retortamonads".

This study is part of submission 11679 (Status: Published).

Citation

Takishita K., Martin K., Komatsuzaki H., Yabuki A., Inagaki Y., Cepicka I., Smejkalova P., Silberman J.D., Hashimoto T., Roger A.J., & Simpson A.G. 2011. Multigene phylogenies of diverse Carpediemonas-like organisms identify the closest relatives of ?amitochondriate? diplomonads and retortamonads. Protist, .

Authors

• Takishita K.
• Martin K.
• Komatsuzaki H.
• Yabuki A.
• Inagaki Y.
• Cepicka I.
• Smejkalova P.
• Silberman J.D.
• Hashimoto T.
• Roger A.J.
• Simpson A.G.

Abstract

Diplomonads, retortamonads, and ?Carpediemonas-like? organisms (CLOs) are a monophyletic group of protists that are microaerophilic/anaerobic and lack typical mitochondria. Most diplomonads and retortamonads are parasites, and the pathogen Giardia intestinalis is known to possess reduced mitochondrion-related organelles (mitosomes) that do not synthesize ATP. By contrast, free-living CLOs have larger organelles that superficially resemble some hydrogenosomes, organelles that in other protists are known to synthesize ATP anaerobically. This group represents an excellent system for studying the evolution of parasitism and anaerobic, mitochondrion-related organelles. Understanding these evolutionary transitions requires a well-resolved phylogeny of diplomonads, retortamonads and CLOs. Unfortunately, until now the deep relationships amongst these taxa were unresolved due to limited data for almost all of the CLO lineages. To address this, we assembled a dataset of up to six protein-coding genes that includes representatives from all six CLO lineages, and complements existing rRNA datasets. Multigene phylogenetic analyses place CLOs as well as the retortamonad Chilomastix as a paraphyletic basal assemblage to the lineage comprising diplomonads and the retortamonad Retortamonas. In particular, the CLO Dysnectes was shown to be the closest relative of the diplomonads + Retortamonas clade with strong support. This phylogeny is consistent with a drastic degeneration of mitochondrion-related organelles during the evolution from a free-living organism resembling extant CLOs to a probable parasite/commensal common ancestor of diplomonads and Retortamonas.

Keywords

Carpediemonas-like organisms; diplomonads; Excavata; hydrogenosomes; mitochondria; mitosomes.

External links

About this resource

• Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S11689
• Other versions: Nexus NeXML
• Show BibTeX reference

  		@ARTICLE{TreeBASE2Ref19843,
  	 author = {Kiyotaka  Takishita and Kolisko  Martin and Hiroshi  Komatsuzaki and Akinori  Yabuki and Yuji  Inagaki and Ivan  Cepicka and Pavla  Smejkalova and Jeffrey D Silberman and Tetsuo  Hashimoto and Andrew J Roger and Alastair GB Simpson},
  	 title = {Multigene phylogenies of diverse Carpediemonas-like organisms identify the closest relatives of ?amitochondriate? diplomonads and retortamonads},
  	 year = {2011},
  	 keywords = {Carpediemonas-like organisms; diplomonads; Excavata; hydrogenosomes; mitochondria; mitosomes.},
  	 doi = {},
  	 url = {http://},
  	 pmid = {},
  	 journal = {Protist},
  	 volume = {},
  	 number = {},
  	 pages = {},
  	 abstract = {Diplomonads, retortamonads, and ?Carpediemonas-like? organisms (CLOs) are a monophyletic group of protists that are microaerophilic/anaerobic and lack typical mitochondria. Most diplomonads and retortamonads are parasites, and the pathogen Giardia intestinalis is known to possess reduced mitochondrion-related organelles (mitosomes) that do not synthesize ATP. By contrast, free-living CLOs have larger organelles that superficially resemble some hydrogenosomes, organelles that in other protists are known to synthesize ATP anaerobically. This group represents an excellent system for studying the evolution of parasitism and anaerobic, mitochondrion-related organelles. Understanding these evolutionary transitions requires a well-resolved phylogeny of diplomonads, retortamonads and CLOs.  Unfortunately, until now the deep relationships amongst these taxa were unresolved due to limited data for almost all of the CLO lineages. To address this, we assembled a dataset of up to six protein-coding genes that includes representatives from all six CLO lineages, and complements existing rRNA datasets. Multigene phylogenetic analyses place CLOs as well as the retortamonad Chilomastix as a paraphyletic basal assemblage to the lineage comprising diplomonads and the retortamonad Retortamonas. In particular, the CLO Dysnectes was shown to be the closest relative of the diplomonads + Retortamonas clade with strong support. This phylogeny is consistent with a drastic degeneration of mitochondrion-related organelles during the evolution from a free-living organism resembling extant CLOs to a probable parasite/commensal common ancestor of diplomonads and Retortamonas.}
  }
  		

• Show RIS reference

  		TY  - JOUR
  ID  - 19843
  AU  - Takishita,Kiyotaka 
  AU  - Martin,Kolisko 
  AU  - Komatsuzaki,Hiroshi 
  AU  - Yabuki,Akinori 
  AU  - Inagaki,Yuji 
  AU  - Cepicka,Ivan 
  AU  - Smejkalova,Pavla 
  AU  - Silberman,Jeffrey D
  AU  - Hashimoto,Tetsuo 
  AU  - Roger,Andrew J
  AU  - Simpson,Alastair GB
  T1  - Multigene phylogenies of diverse Carpediemonas-like organisms identify the closest relatives of ?amitochondriate? diplomonads and retortamonads
  PY  - 2011
  KW  - Carpediemonas-like organisms; diplomonads; Excavata; hydrogenosomes; mitochondria; mitosomes.
  UR  - http://dx.doi.org/
  N2  - Diplomonads, retortamonads, and ?Carpediemonas-like? organisms (CLOs) are a monophyletic group of protists that are microaerophilic/anaerobic and lack typical mitochondria. Most diplomonads and retortamonads are parasites, and the pathogen Giardia intestinalis is known to possess reduced mitochondrion-related organelles (mitosomes) that do not synthesize ATP. By contrast, free-living CLOs have larger organelles that superficially resemble some hydrogenosomes, organelles that in other protists are known to synthesize ATP anaerobically. This group represents an excellent system for studying the evolution of parasitism and anaerobic, mitochondrion-related organelles. Understanding these evolutionary transitions requires a well-resolved phylogeny of diplomonads, retortamonads and CLOs.  Unfortunately, until now the deep relationships amongst these taxa were unresolved due to limited data for almost all of the CLO lineages. To address this, we assembled a dataset of up to six protein-coding genes that includes representatives from all six CLO lineages, and complements existing rRNA datasets. Multigene phylogenetic analyses place CLOs as well as the retortamonad Chilomastix as a paraphyletic basal assemblage to the lineage comprising diplomonads and the retortamonad Retortamonas. In particular, the CLO Dysnectes was shown to be the closest relative of the diplomonads + Retortamonas clade with strong support. This phylogeny is consistent with a drastic degeneration of mitochondrion-related organelles during the evolution from a free-living organism resembling extant CLOs to a probable parasite/commensal common ancestor of diplomonads and Retortamonas.
  L3  - 
  JF  - Protist
  VL  - 
  IS  - 
  ER  -