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Citation for Study 15110

Citation title: "The Mirandea Clade (Acanthaceae, Justicieae, Tetramerium Lineage): Phylogenetic Signal from Molecular Data and Micromorphology Makes Sense of Taxonomic Confusion Caused by Remarkable Diversity of Floral Form".

Study name: "The Mirandea Clade (Acanthaceae, Justicieae, Tetramerium Lineage): Phylogenetic Signal from Molecular Data and Micromorphology Makes Sense of Taxonomic Confusion Caused by Remarkable Diversity of Floral Form".

This study is part of submission 15110 (Status: Published).

Citation

Kiel C., & Mcdade L. 2014. The Mirandea Clade (Acanthaceae, Justicieae, Tetramerium Lineage): Phylogenetic Signal from Molecular Data and Micromorphology Makes Sense of Taxonomic Confusion Caused by Remarkable Diversity of Floral Form. Systematic Botany, .

Authors

• Kiel C.
• Mcdade L.

Abstract

The Mirandea clade (Acanthaceae) is part of the Tetramerium lineage (Acanthaceae: Justicieae). Traditionally macromorphological floral traits such as floral form and color have guided taxonomy in the Tetramerium lineage but earlier results on this group indicate that these traits are highly homoplastic. The present study includes all described species and multiple samples of Hoverdenia, Mirandea, and Yeatesia to fully delimit the Mirandea clade, test monophyly of species and determine relationships among them using DNA sequence data from five regions (nuclear: nrITS and ncpGS; cp: trnS?G, ndhF?trnL(UAG) and trnT?L). The Mirandea clade is here shown to include seven species currently placed in four genera: Mirandea, Hoverdenia, Yeatesia, and Justicia. The lineage is edaphically and geographically cohesive, occurring along the Sierra Madre Oriental in Mexico and southern Texas in xeric habitats, except for one species that inhabits a broad geographical region of the southeastern United States in mesic habitats. We present micromorphological data from seeds and pollen, and discuss the evolution of these traits, as well as other floral traits. These results support the heterodox idea that micromorphological traits of seed testa and pollen exine, morphologies that are not found among other clades of the Tetramerium lineage, are phylogenetically informative among members of the Mirandea clade whereas floral traits are not. Plants in this clade exhibit remarkable interspecific variation in both floral form and color, suggesting divergent evolution in conjunction with pollination syndrome. Taxonomic implications of these results are discussed.

Keywords

Acanthaceae, Hoverdenia, Mirandea, palynology, seed morphology, Tetramerium Lineage, Yeatesia.

External links

About this resource

• Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S15110
• Other versions: Nexus NeXML
• Show BibTeX reference

  		@ARTICLE{TreeBASE2Ref22683,
  	 author = {Carrie A.  Kiel and Lucinda A.  McDade},
  	 title = {The Mirandea Clade (Acanthaceae, Justicieae, Tetramerium Lineage):  Phylogenetic Signal from Molecular Data and Micromorphology Makes Sense of Taxonomic Confusion Caused by Remarkable Diversity of Floral Form},
  	 year = {2014},
  	 keywords = {Acanthaceae, Hoverdenia, Mirandea, palynology, seed morphology, Tetramerium Lineage, Yeatesia.},
  	 doi = {},
  	 url = {http://},
  	 pmid = {},
  	 journal = {Systematic Botany},
  	 volume = {},
  	 number = {},
  	 pages = {},
  	 abstract = {The Mirandea clade (Acanthaceae) is part of the Tetramerium lineage (Acanthaceae: Justicieae). Traditionally macromorphological floral traits such as floral form and color have guided taxonomy in the Tetramerium lineage but earlier results on this group indicate that these traits are highly homoplastic. The present study includes all described species and multiple samples of Hoverdenia, Mirandea, and Yeatesia to fully delimit the Mirandea clade, test monophyly of species and determine relationships among them using DNA sequence data from five regions (nuclear: nrITS and ncpGS; cp: trnS?G, ndhF?trnL(UAG) and trnT?L). The Mirandea clade is here shown to include seven species currently placed in four genera: Mirandea, Hoverdenia, Yeatesia, and Justicia. The lineage is edaphically and geographically cohesive, occurring along the Sierra Madre Oriental in Mexico and southern Texas in xeric habitats, except for one species that inhabits a broad geographical region of the southeastern United States in mesic habitats. We present micromorphological data from seeds and pollen, and discuss the evolution of these traits, as well as other floral traits. These results support the heterodox idea that micromorphological traits of seed testa and pollen exine, morphologies that are not found among other clades of the Tetramerium lineage, are phylogenetically informative among members of the Mirandea clade whereas floral traits are not. Plants in this clade exhibit remarkable interspecific variation in both floral form and color, suggesting divergent evolution in conjunction with pollination syndrome. Taxonomic implications of these results are discussed.  }
  }
  		

• Show RIS reference

  		TY  - JOUR
  ID  - 22683
  AU  - Kiel,Carrie A. 
  AU  - McDade,Lucinda A. 
  T1  - The Mirandea Clade (Acanthaceae, Justicieae, Tetramerium Lineage):  Phylogenetic Signal from Molecular Data and Micromorphology Makes Sense of Taxonomic Confusion Caused by Remarkable Diversity of Floral Form
  PY  - 2014
  KW  - Acanthaceae
  KW  - Hoverdenia
  KW  - Mirandea
  KW  - palynology
  KW  - seed morphology
  KW  - Tetramerium Lineage
  KW  - Yeatesia.
  UR  - http://dx.doi.org/
  N2  - The Mirandea clade (Acanthaceae) is part of the Tetramerium lineage (Acanthaceae: Justicieae). Traditionally macromorphological floral traits such as floral form and color have guided taxonomy in the Tetramerium lineage but earlier results on this group indicate that these traits are highly homoplastic. The present study includes all described species and multiple samples of Hoverdenia, Mirandea, and Yeatesia to fully delimit the Mirandea clade, test monophyly of species and determine relationships among them using DNA sequence data from five regions (nuclear: nrITS and ncpGS; cp: trnS?G, ndhF?trnL(UAG) and trnT?L). The Mirandea clade is here shown to include seven species currently placed in four genera: Mirandea, Hoverdenia, Yeatesia, and Justicia. The lineage is edaphically and geographically cohesive, occurring along the Sierra Madre Oriental in Mexico and southern Texas in xeric habitats, except for one species that inhabits a broad geographical region of the southeastern United States in mesic habitats. We present micromorphological data from seeds and pollen, and discuss the evolution of these traits, as well as other floral traits. These results support the heterodox idea that micromorphological traits of seed testa and pollen exine, morphologies that are not found among other clades of the Tetramerium lineage, are phylogenetically informative among members of the Mirandea clade whereas floral traits are not. Plants in this clade exhibit remarkable interspecific variation in both floral form and color, suggesting divergent evolution in conjunction with pollination syndrome. Taxonomic implications of these results are discussed.  
  L3  - 
  JF  - Systematic Botany
  VL  - 
  IS  - 
  ER  -