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Citation for Study 15211

Citation title: "Phylogenetic position and floral morphology of the Brazilian endemic, monospecific genus Cotylolabium: a sister group for the remaining Spiranthinae (Orchidaceae)".

Study name: "Phylogenetic position and floral morphology of the Brazilian endemic, monospecific genus Cotylolabium: a sister group for the remaining Spiranthinae (Orchidaceae)".

This study is part of submission 15211 (Status: Published).

Citation

Borba E.L., Salazar G.A., Mazzoni-viveiros S.C., & Batista J.A. 2014. Phylogenetic position and floral morphology of the Brazilian endemic, monospecific genus Cotylolabium: a sister group for the remaining Spiranthinae (Orchidaceae). Botanical Journal of the Linnean Society, .

Authors

• Borba E.L.
• Salazar G.A.
• Mazzoni-viveiros S.C.
• Batista J.A.

Abstract

Cotylolabium is a monospecific, little-known genus endemic to a single mountain top in south-eastern Brazil. In this work, we present a detailed morphological description (including anatomical and histochemical aspects of the labellum) based on live and ethanol-preserved material of Cotylolabium lutzii. We also assess its phylogenetic position, analysing nucleotide sequences of plastid (matK?trnK, trnL?trnF) and nuclear DNA [internal transcribed spacer (ITS)] and discuss its conservation status. Our phylogenetic analysis strongly supports Cotylolabium as the sister of the rest of subtribe Spiranthinae. Inferences made from floral morphology, labellum anatomy and floral odour suggest melittophilous pollination. Possession of cauline leaves, minutely papillose leaf margins, decurrent floral bracts, an osmophore located on the outer labellum surface and, especially, a labellum neatly divided into a proximal, nectar-bearing portion (hypochile) and a distal portion (epichile) by a transverse blade (trabecula) are distinguishing characters of this taxon. The first-branching position of C. lutzii in our molecular trees supports an interpretation of the narrow, stiff rostellum remnant as plesiomorphic in the subtribe. The narrow endemicity and the phylogenetic position of C. lutzii both point to the relictual nature of this taxon, which is considered as critically endangered

Keywords

endemism ? internal transcribed spacer (ITS) ? matK?trnK ? molecular phylogenetics ? osmophore ? trnL?trnF3

External links

About this resource

• Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S15211
• Other versions: Nexus NeXML
• Show BibTeX reference

  		@ARTICLE{TreeBASE2Ref22756,
  	 author = {Eduardo L. Borba and Gerardo A Salazar and Solange C Mazzoni-Viveiros and Joao A. N. Batista},
  	 title = {Phylogenetic position and floral morphology  of the Brazilian endemic, monospecific genus  Cotylolabium: a sister group for the remaining  Spiranthinae (Orchidaceae)},
  	 year = {2014},
  	 keywords = {endemism ? internal transcribed spacer (ITS) ? matK?trnK ? molecular  phylogenetics ? osmophore ? trnL?trnF3  },
  	 doi = {},
  	 url = {http://},
  	 pmid = {},
  	 journal = {Botanical Journal of the Linnean Society},
  	 volume = {},
  	 number = {},
  	 pages = {},
  	 abstract = {Cotylolabium is a monospecific, little-known genus endemic to a single mountain top in south-eastern Brazil. In this work, we present a detailed morphological description (including anatomical and histochemical aspects of the labellum) based on live and ethanol-preserved material of Cotylolabium lutzii. We also assess its phylogenetic position, analysing nucleotide sequences of plastid (matK?trnK, trnL?trnF) and nuclear DNA [internal transcribed spacer (ITS)] and discuss its conservation status. Our phylogenetic analysis strongly supports Cotylolabium as the 
  sister of the rest of subtribe Spiranthinae. Inferences made from floral morphology, labellum anatomy and floral odour suggest melittophilous pollination. Possession of cauline leaves, minutely papillose leaf margins, decurrent floral bracts, an osmophore located on the outer labellum surface and, especially, a labellum neatly divided into a proximal, nectar-bearing portion (hypochile) and a distal portion (epichile) by a transverse blade (trabecula) are 
  distinguishing characters of this taxon. The first-branching position of C. lutzii in our molecular trees supports an interpretation of the narrow, stiff rostellum remnant as plesiomorphic in the subtribe. The narrow endemicity and the phylogenetic position of C. lutzii both point to the relictual nature of this taxon, which is considered as critically endangered}
  }
  		

• Show RIS reference

  		TY  - JOUR
  ID  - 22756
  AU  - Borba,Eduardo L.
  AU  - Salazar,Gerardo A
  AU  - Mazzoni-Viveiros,Solange C
  AU  - Batista,Joao A. N.
  T1  - Phylogenetic position and floral morphology  of the Brazilian endemic, monospecific genus  Cotylolabium: a sister group for the remaining  Spiranthinae (Orchidaceae)
  PY  - 2014
  KW  - endemism ? internal transcribed spacer (ITS) ? matK?trnK ? molecular  phylogenetics ? osmophore ? trnL?trnF3  
  UR  - http://dx.doi.org/
  N2  - Cotylolabium is a monospecific, little-known genus endemic to a single mountain top in south-eastern Brazil. In this work, we present a detailed morphological description (including anatomical and histochemical aspects of the labellum) based on live and ethanol-preserved material of Cotylolabium lutzii. We also assess its phylogenetic position, analysing nucleotide sequences of plastid (matK?trnK, trnL?trnF) and nuclear DNA [internal transcribed spacer (ITS)] and discuss its conservation status. Our phylogenetic analysis strongly supports Cotylolabium as the 
  sister of the rest of subtribe Spiranthinae. Inferences made from floral morphology, labellum anatomy and floral odour suggest melittophilous pollination. Possession of cauline leaves, minutely papillose leaf margins, decurrent floral bracts, an osmophore located on the outer labellum surface and, especially, a labellum neatly divided into a proximal, nectar-bearing portion (hypochile) and a distal portion (epichile) by a transverse blade (trabecula) are 
  distinguishing characters of this taxon. The first-branching position of C. lutzii in our molecular trees supports an interpretation of the narrow, stiff rostellum remnant as plesiomorphic in the subtribe. The narrow endemicity and the phylogenetic position of C. lutzii both point to the relictual nature of this taxon, which is considered as critically endangered
  L3  - 
  JF  - Botanical Journal of the Linnean Society
  VL  - 
  IS  - 
  ER  -