@ARTICLE{TreeBASE2Ref22770,
author = {Ding He and Fiz-Palacios Omar and Cheng-Jie Fu and Johanna Fehling and Chun-Chieh Tsai and Sandra L Baldauf},
title = {An alternative root for the eukaryote tree of life.},
year = {2014},
keywords = {The eukaryote root; Discoba},
doi = {10.1016/j.cub.2014.01.036},
url = {},
pmid = {},
journal = {Current Biology},
volume = {24},
number = {},
pages = {1--6},
abstract = {The root of the eukaryote tree of life defines some of the most fundamental relationships among species. It is also critical for defining the last eukaryote common ancestor (LECA), the shared heritage of all extant species. The unikont-bikont root has been the reigning paradigm for eukaryotes for more than 10 years but is becoming increasingly controversial. We developed a carefully vetted data set, consisting of 37 nuclear-encoded proteins of close bacterial ancestry (euBacs) and their closest bacterial relatives, augmented by deep sequencing of the Acrasis kona (Heterolobosea, Discoba) transcriptome. Phylogenetic analysis of these data produces a highly robust, fully resolved global phylogeny of eukaryotes. The tree sorts all examined eukaryotes into three megagroups and identifies the Discoba, and potentially its parent taxon Excavata, as the sister group to the bulk of known eukaryote diversity, the proposed Neozoa (Amorphea + Stramenopila+Alveolata+Rhizaria+Plantae [SARP]). All major alternative hypotheses are rejected with as little as ∼50% of the data, and this resolution is unaffected by the presence of fast-evolving alignment positions or distant outgroup sequences. This ?neozoan-excavate? root revises hypotheses of early eukaryote evolution and highlights the importance of the poorly studied Discoba for understanding the evolution of eukaryotic diversity and basic cellular processes.}
}
Citation for Study 14693
Citation title:
"An alternative root for the eukaryote tree of life.".
Study name:
"An alternative root for the eukaryote tree of life.".
This study is part of submission 14693
(Status: Published).
Citation
He D., Omar F., Fu C., Fehling J., Tsai C., & Baldauf S.L. 2014. An alternative root for the eukaryote tree of life. Current Biology, 24: 1-6.
Authors
-
He D.
-
Omar F.
-
Fu C.
-
Fehling J.
-
Tsai C.
-
Baldauf S.L.
Abstract
The root of the eukaryote tree of life defines some of the most fundamental relationships among species. It is also critical for defining the last eukaryote common ancestor (LECA), the shared heritage of all extant species. The unikont-bikont root has been the reigning paradigm for eukaryotes for more than 10 years but is becoming increasingly controversial. We developed a carefully vetted data set, consisting of 37 nuclear-encoded proteins of close bacterial ancestry (euBacs) and their closest bacterial relatives, augmented by deep sequencing of the Acrasis kona (Heterolobosea, Discoba) transcriptome. Phylogenetic analysis of these data produces a highly robust, fully resolved global phylogeny of eukaryotes. The tree sorts all examined eukaryotes into three megagroups and identifies the Discoba, and potentially its parent taxon Excavata, as the sister group to the bulk of known eukaryote diversity, the proposed Neozoa (Amorphea + Stramenopila+Alveolata+Rhizaria+Plantae [SARP]). All major alternative hypotheses are rejected with as little as ∼50% of the data, and this resolution is unaffected by the presence of fast-evolving alignment positions or distant outgroup sequences. This ?neozoan-excavate? root revises hypotheses of early eukaryote evolution and highlights the importance of the poorly studied Discoba for understanding the evolution of eukaryotic diversity and basic cellular processes.
Keywords
The eukaryote root; Discoba
External links
About this resource
- Canonical resource URI:
http://purl.org/phylo/treebase/phylows/study/TB2:S14693
- Other versions:
Nexus
NeXML
- Show BibTeX reference
@ARTICLE{TreeBASE2Ref22770,
author = {Ding He and Fiz-Palacios Omar and Cheng-Jie Fu and Johanna Fehling and Chun-Chieh Tsai and Sandra L Baldauf},
title = {An alternative root for the eukaryote tree of life.},
year = {2014},
keywords = {The eukaryote root; Discoba},
doi = {10.1016/j.cub.2014.01.036},
url = {},
pmid = {},
journal = {Current Biology},
volume = {24},
number = {},
pages = {1--6},
abstract = {The root of the eukaryote tree of life defines some of the most fundamental relationships among species. It is also critical for defining the last eukaryote common ancestor (LECA), the shared heritage of all extant species. The unikont-bikont root has been the reigning paradigm for eukaryotes for more than 10 years but is becoming increasingly controversial. We developed a carefully vetted data set, consisting of 37 nuclear-encoded proteins of close bacterial ancestry (euBacs) and their closest bacterial relatives, augmented by deep sequencing of the Acrasis kona (Heterolobosea, Discoba) transcriptome. Phylogenetic analysis of these data produces a highly robust, fully resolved global phylogeny of eukaryotes. The tree sorts all examined eukaryotes into three megagroups and identifies the Discoba, and potentially its parent taxon Excavata, as the sister group to the bulk of known eukaryote diversity, the proposed Neozoa (Amorphea + Stramenopila+Alveolata+Rhizaria+Plantae [SARP]). All major alternative hypotheses are rejected with as little as ∼50% of the data, and this resolution is unaffected by the presence of fast-evolving alignment positions or distant outgroup sequences. This ?neozoan-excavate? root revises hypotheses of early eukaryote evolution and highlights the importance of the poorly studied Discoba for understanding the evolution of eukaryotic diversity and basic cellular processes.}
}
- Show RIS reference
TY - JOUR
ID - 22770
AU - He,Ding
AU - Omar,Fiz-Palacios
AU - Fu,Cheng-Jie
AU - Fehling,Johanna
AU - Tsai,Chun-Chieh
AU - Baldauf,Sandra L
T1 - An alternative root for the eukaryote tree of life.
PY - 2014
KW - The eukaryote root; Discoba
UR -
N2 - The root of the eukaryote tree of life defines some of the most fundamental relationships among species. It is also critical for defining the last eukaryote common ancestor (LECA), the shared heritage of all extant species. The unikont-bikont root has been the reigning paradigm for eukaryotes for more than 10 years but is becoming increasingly controversial. We developed a carefully vetted data set, consisting of 37 nuclear-encoded proteins of close bacterial ancestry (euBacs) and their closest bacterial relatives, augmented by deep sequencing of the Acrasis kona (Heterolobosea, Discoba) transcriptome. Phylogenetic analysis of these data produces a highly robust, fully resolved global phylogeny of eukaryotes. The tree sorts all examined eukaryotes into three megagroups and identifies the Discoba, and potentially its parent taxon Excavata, as the sister group to the bulk of known eukaryote diversity, the proposed Neozoa (Amorphea + Stramenopila+Alveolata+Rhizaria+Plantae [SARP]). All major alternative hypotheses are rejected with as little as ∼50% of the data, and this resolution is unaffected by the presence of fast-evolving alignment positions or distant outgroup sequences. This ?neozoan-excavate? root revises hypotheses of early eukaryote evolution and highlights the importance of the poorly studied Discoba for understanding the evolution of eukaryotic diversity and basic cellular processes.
L3 - 10.1016/j.cub.2014.01.036
JF - Current Biology
VL - 24
IS -
SP - 1
EP - 6
ER -
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