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Citation for Study 1745

Citation title: "When genes meet nomenclature: tortoise phylogeny and the shifting generic concepts of Testudo and Geochelone".

This study was previously identified under the legacy study ID S1712 (Status: Published).

Citation

Fritz U., & Bininda-emonds O. 2007. When genes meet nomenclature: tortoise phylogeny and the shifting generic concepts of Testudo and Geochelone. Zoology, 110(4): 298-307.

Authors

• Fritz U.
• Bininda-emonds O.

Abstract

We used a five-gene data set (mtDNA: 12S rRNA, 16S rRNA, cyt-b; nDNA: Cmos, Rag2) comprising approximately two-thirds of all extant testudinid species and, for the first time, including all five Testudo species to investigate the question of whether all western Palaearctic testudinids are monophyletic. Further, we examined whether the recently suggested allocation of the African Geochelone pardalis in the otherwise exclusively South African genus Psammobates and of the Malagasy G. yniphora in the monotypic genus Angonoka is justified in the face of considerable morphological evidence against such placements. Our phylogenetic analyses do not support the paraphyly and generic break-up of Testudo, as suggested by previous papers using a smaller taxon-sampling and mtDNA data only. We propose a continued usage of the generic name Testudo for all five western Palaearctic tortoise species. Within Testudo, two monophyletic subclades are present, one containing T. hermanni + T. horsfieldii, and the other comprising ((T. kleinmanni + T. marginata) + T. graeca). Nomenclaturally, we argue that Eurotestudo Lapparent de Broin et al., 2006, which was recently erected with the type species T. hermanni, is an objective junior synonym of Chersine Merrem, 1820 and Medaestia Wussow, 1916. Recognition of a monotypic genus Angonoka for G. yniphora is unwarranted according to both our re-analysis of sequence data and morphological data. Acknowledging the strong morphological similarity between G. yniphora and G. radiata, we suggest placing both species into the genus Astrochelys. Although sequence data for only one of the three Psammobates species was available for analysis, there is currently no cause to challenge the monophyly of this genus as established on the basis of morphological evidence. Thus, we hypothesize that G. pardalis is sister to a monophyletic Psammobates. In light of the clear morphological gap between G. pardalis and Psammobates species, the recognition of a distinct genus Stigmochelys for the former seems justified.

External links

• DOI: 10.1016/j.zool.2007.02.003

About this resource

• Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S1745
• Other versions: Nexus NeXML
• Show BibTeX reference

  		@ARTICLE{TreeBASE2Ref15484,
  	 author = {Uwe  Fritz and Olaf R. P.  Bininda-Emonds},
  	 title = {When genes meet nomenclature: tortoise phylogeny and the shifting generic concepts of Testudo and Geochelone},
  	 year = {2007},
  	 keywords = {},
  	 doi = {10.1016/j.zool.2007.02.003},
  	 url = {},
  	 pmid = {},
  	 journal = {Zoology},
  	 volume = {110},
  	 number = {4},
  	 pages = {298--307},
  	 abstract = {We used a five-gene data set (mtDNA: 12S rRNA, 16S rRNA, cyt-b; nDNA: Cmos, Rag2) comprising approximately two-thirds of all extant testudinid species and, for the first time, including all five Testudo species to investigate the question of whether all western Palaearctic testudinids are monophyletic. Further, we examined whether the recently suggested allocation of the African Geochelone pardalis in the otherwise exclusively South African genus Psammobates and of the Malagasy G. yniphora in the monotypic genus Angonoka is justified in the face of considerable morphological evidence against such placements. Our phylogenetic analyses do not support the paraphyly and generic break-up of Testudo, as suggested by previous papers using a smaller taxon-sampling and mtDNA data only. We propose a continued usage of the generic name Testudo for all five western Palaearctic tortoise species. Within Testudo, two monophyletic subclades are present, one containing T. hermanni + T. horsfieldii, and the other comprising ((T. kleinmanni + T. marginata) + T. graeca). Nomenclaturally, we argue that Eurotestudo Lapparent de Broin et al., 2006, which was recently erected with the type species T. hermanni, is an objective junior synonym of Chersine Merrem, 1820 and Medaestia Wussow, 1916. Recognition of a monotypic genus Angonoka for G. yniphora is unwarranted according to both our re-analysis of sequence data and morphological data. Acknowledging the strong morphological similarity between G. yniphora and G. radiata, we suggest placing both species into the genus Astrochelys. Although sequence data for only one of the three Psammobates species was available for analysis, there is currently no cause to challenge the monophyly of this genus as established on the basis of morphological evidence. Thus, we hypothesize that G. pardalis is sister to a monophyletic Psammobates. In light of the clear morphological gap between G. pardalis and Psammobates species, the recognition of a distinct genus Stigmochelys for the former seems justified.}
  }
  		

• Show RIS reference

  		TY  - JOUR
  ID  - 15484
  AU  - Fritz,Uwe 
  AU  - Bininda-Emonds,Olaf R. P. 
  T1  - When genes meet nomenclature: tortoise phylogeny and the shifting generic concepts of Testudo and Geochelone
  PY  - 2007
  UR  - http://dx.doi.org/10.1016/j.zool.2007.02.003
  N2  - We used a five-gene data set (mtDNA: 12S rRNA, 16S rRNA, cyt-b; nDNA: Cmos, Rag2) comprising approximately two-thirds of all extant testudinid species and, for the first time, including all five Testudo species to investigate the question of whether all western Palaearctic testudinids are monophyletic. Further, we examined whether the recently suggested allocation of the African Geochelone pardalis in the otherwise exclusively South African genus Psammobates and of the Malagasy G. yniphora in the monotypic genus Angonoka is justified in the face of considerable morphological evidence against such placements. Our phylogenetic analyses do not support the paraphyly and generic break-up of Testudo, as suggested by previous papers using a smaller taxon-sampling and mtDNA data only. We propose a continued usage of the generic name Testudo for all five western Palaearctic tortoise species. Within Testudo, two monophyletic subclades are present, one containing T. hermanni + T. horsfieldii, and the other comprising ((T. kleinmanni + T. marginata) + T. graeca). Nomenclaturally, we argue that Eurotestudo Lapparent de Broin et al., 2006, which was recently erected with the type species T. hermanni, is an objective junior synonym of Chersine Merrem, 1820 and Medaestia Wussow, 1916. Recognition of a monotypic genus Angonoka for G. yniphora is unwarranted according to both our re-analysis of sequence data and morphological data. Acknowledging the strong morphological similarity between G. yniphora and G. radiata, we suggest placing both species into the genus Astrochelys. Although sequence data for only one of the three Psammobates species was available for analysis, there is currently no cause to challenge the monophyly of this genus as established on the basis of morphological evidence. Thus, we hypothesize that G. pardalis is sister to a monophyletic Psammobates. In light of the clear morphological gap between G. pardalis and Psammobates species, the recognition of a distinct genus Stigmochelys for the former seems justified.
  L3  - 10.1016/j.zool.2007.02.003
  JF  - Zoology
  VL  - 110
  IS  - 4
  SP  - 298
  EP  - 307
  ER  -