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Citation for Study 15281

Citation title: "A multilocus phylogeny reveals deep lineages within African galagids (Primates: Galagidae)".

Study name: "A multilocus phylogeny reveals deep lineages within African galagids (Primates: Galagidae)".

This study is part of submission 15281 (Status: Published).

Citation

Pozzi L., Disotell T.R., & Masters J.C. 2014. A multilocus phylogeny reveals deep lineages within African galagids (Primates: Galagidae). BMC Evolutionary Biology, 14: 72.

Authors

• Pozzi L. (submitter)
• Disotell T.R.
• Masters J.C.

Abstract

Background Bushbabies (Galagidae) are among the most morphologically cryptic of all primates and their diversity and relationships are some of the most longstanding problems in primatology. Our knowledge of galagid evolutionary history has been limited by a lack of appropriate molecular data and a paucity of fossils. Most phylogenetic studies have produced conflicting results for many clades, and even the relationships among genera remain uncertain. To clarify galagid evolutionary history, we assembled the largest molecular dataset for galagos to date by sequencing 27 independent loci. We inferred phylogenetic relationships using concatenated maximum-likelihood (ML) and Bayesian analyses, and also coalescent-based species tree methods to account for gene tree heterogeneity due to incomplete lineage sorting. Results The genus Euoticus was identified as sister taxon to the rest of the galagids and the genus Galagoides was not recovered as monophyletic, suggesting that a new generic name for the Zanzibar complex is required. Despite the amount of genetic data collected in this study, the monophyly of the family Lorisidae remained poorly supported, probably due to the short internode between the Lorisidae/Galagidae split and the origin of the African and Asian lorisid clades. One major result was the relatively old origin for the most recent common ancestor of all living galagids soon after the Eocene-Oligocene boundary. Conclusions Using a multilocus approach, our results suggest an early origin for the crown Galagidae, soon after the Eocene-Oligocene boundary, making Euoticus one of the oldest lineages within extant Primates. This result also implies that one ? or possibly more ? stem radiations diverged in the Late Eocene and persisted for several million years alongside members of the crown group.

Keywords

Concatenation, species tree, divergence times, nuclear DNA, Eocene-Oligocene boundary, Strepsirhini, Lorisoidea

External links

• DOI: 10.1186/1471-2148-14-72
• Other URL: http://www.biomedcentral.com/1471-2148/14/72

About this resource

• Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S15281
• Other versions: Nexus NeXML
• Show BibTeX reference

  		@ARTICLE{TreeBASE2Ref22796,
  	 author = {Luca  Pozzi and Todd R Disotell and Judith C Masters},
  	 title = {A multilocus phylogeny reveals deep lineages within African galagids (Primates: Galagidae)},
  	 year = {2014},
  	 keywords = {Concatenation, species tree, divergence times, nuclear DNA, Eocene-Oligocene boundary, Strepsirhini, Lorisoidea},
  	 doi = {10.1186/1471-2148-14-72},
  	 url = {http://www.biomedcentral.com/1471-2148/14/72},
  	 pmid = {},
  	 journal = {BMC Evolutionary Biology},
  	 volume = {14},
  	 number = {},
  	 pages = {72},
  	 abstract = {Background
  Bushbabies (Galagidae) are among the most morphologically cryptic of all primates and their diversity and relationships are some of the most longstanding problems in primatology. Our knowledge of galagid evolutionary history has been limited by a lack of appropriate molecular data and a paucity of fossils. Most phylogenetic studies have produced conflicting results for many clades, and even the relationships among genera remain uncertain. To clarify galagid evolutionary history, we assembled the largest molecular dataset for galagos to date by sequencing 27 independent loci. We inferred phylogenetic relationships using concatenated maximum-likelihood (ML) and Bayesian analyses, and also coalescent-based species tree methods to account for gene tree heterogeneity due to incomplete lineage sorting.
  
  Results
  The genus Euoticus was identified as sister taxon to the rest of the galagids and the genus Galagoides was not recovered as monophyletic, suggesting that a new generic name for the Zanzibar complex is required. Despite the amount of genetic data collected in this study, the monophyly of the family Lorisidae remained poorly supported, probably due to the short internode between the Lorisidae/Galagidae split and the origin of the African and Asian lorisid clades. One major result was the relatively old origin for the most recent common ancestor of all living galagids soon after the Eocene-Oligocene boundary.
  
  Conclusions
  Using a multilocus approach, our results suggest an early origin for the crown Galagidae, soon after the Eocene-Oligocene boundary, making Euoticus one of the oldest lineages within extant Primates. This result also implies that one ? or possibly more ? stem radiations diverged in the Late Eocene and persisted for several million years alongside members of the crown group. }
  }
  		

• Show RIS reference

  		TY  - JOUR
  ID  - 22796
  AU  - Pozzi,Luca 
  AU  - Disotell,Todd R
  AU  - Masters,Judith C
  T1  - A multilocus phylogeny reveals deep lineages within African galagids (Primates: Galagidae)
  PY  - 2014
  KW  - Concatenation
  KW  - species tree
  KW  - divergence times
  KW  - nuclear DNA
  KW  - Eocene-Oligocene boundary
  KW  - Strepsirhini
  KW  - Lorisoidea
  UR  - http://www.biomedcentral.com/1471-2148/14/72
  N2  - Background
  Bushbabies (Galagidae) are among the most morphologically cryptic of all primates and their diversity and relationships are some of the most longstanding problems in primatology. Our knowledge of galagid evolutionary history has been limited by a lack of appropriate molecular data and a paucity of fossils. Most phylogenetic studies have produced conflicting results for many clades, and even the relationships among genera remain uncertain. To clarify galagid evolutionary history, we assembled the largest molecular dataset for galagos to date by sequencing 27 independent loci. We inferred phylogenetic relationships using concatenated maximum-likelihood (ML) and Bayesian analyses, and also coalescent-based species tree methods to account for gene tree heterogeneity due to incomplete lineage sorting.
  
  Results
  The genus Euoticus was identified as sister taxon to the rest of the galagids and the genus Galagoides was not recovered as monophyletic, suggesting that a new generic name for the Zanzibar complex is required. Despite the amount of genetic data collected in this study, the monophyly of the family Lorisidae remained poorly supported, probably due to the short internode between the Lorisidae/Galagidae split and the origin of the African and Asian lorisid clades. One major result was the relatively old origin for the most recent common ancestor of all living galagids soon after the Eocene-Oligocene boundary.
  
  Conclusions
  Using a multilocus approach, our results suggest an early origin for the crown Galagidae, soon after the Eocene-Oligocene boundary, making Euoticus one of the oldest lineages within extant Primates. This result also implies that one ? or possibly more ? stem radiations diverged in the Late Eocene and persisted for several million years alongside members of the crown group. 
  L3  - 10.1186/1471-2148-14-72
  JF  - BMC Evolutionary Biology
  VL  - 14
  IS  - 
  ER  -