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Divided Leaves in the Genus Elaphoglossum (Dryopteridaceae): A Phylogeny of Elaphoglossum Section Squamipedia

Elaphoglossum is comprised almost entirely of epiphytic species with simple and entire leaves. Elaphoglossum section Squamipedia is intriguing because four of its species have dissected leaves. To generate a phylogenetic hypothesis of the relationships among all taxa belonging to section Squamipedia... Full description

Journal Title: Systematic botany 2015-02, Vol.40 (1), p.46-55
Main Author: Vasco, Alejandra
Other Authors: Lóriga, Josmaily , Rouhan, Germinal , Ambrose, Barbara A , Moran, Robbin C
Format: Electronic Article Electronic Article
Language: English
Subjects:
Quelle: Alma/SFX Local Collection
Publisher: American Society of Plant Toxonomists
ID: ISSN: 0363-6445
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recordid: cdi_ingenta_journals_aspt_sb_2015_00000040_00000001_art00007
title: Divided Leaves in the Genus Elaphoglossum (Dryopteridaceae): A Phylogeny of Elaphoglossum Section Squamipedia
format: Article
creator:
  • Vasco, Alejandra
  • Lóriga, Josmaily
  • Rouhan, Germinal
  • Ambrose, Barbara A
  • Moran, Robbin C
subjects:
  • Botany
  • Ferns
  • Genetic aspects
  • Identification and classification
  • Leaf Dissection
  • Nomenclature
  • Observations
  • Phylogeny
  • Systematics
  • Taxonomy
ispartof: Systematic botany, 2015-02, Vol.40 (1), p.46-55
description: Elaphoglossum is comprised almost entirely of epiphytic species with simple and entire leaves. Elaphoglossum section Squamipedia is intriguing because four of its species have dissected leaves. To generate a phylogenetic hypothesis of the relationships among all taxa belonging to section Squamipedia, we assembled a three-locus plastid dataset that included all recognized species in the section plus taxa representing all other sections of Elaphoglossum and three bolbitidoid genera. Our results support section Squamipedia as monophyletic. The species belonging to section Squamipedia are recovered in two well supported clades. The first clade includes two species endemic to Madagascar, whereas the second includes 16 species endemic to the Neotropics. Echinulate spores are synapomophic for the Neotropical species of section Squamipedia. Other characters that characterize most species of section Squamipedia are long-creeping rhizomes and absence of phyllopodia; however, two species of section Squamipedia (E. nidusoides and E. nidiforme) have phyllopodia and short-creeping rhizomes. The four species with dissected leaves belong to different clades and had independent origins from ancestors with simple, entire leaves. Dissected leaves have evolved at least six times during the history of Elaphoglossum. Elaphoglossum lloense and E. squamipes, two species defined on the basis of morphology, are not supported by our molecular analyses, being recovered in three and two different clades, respectively.
language: eng
source: Alma/SFX Local Collection
identifier: ISSN: 0363-6445
fulltext: fulltext
issn:
  • 0363-6445
  • 1548-2324
url: Link


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titleDivided Leaves in the Genus Elaphoglossum (Dryopteridaceae): A Phylogeny of Elaphoglossum Section Squamipedia
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creatorVasco, Alejandra ; Lóriga, Josmaily ; Rouhan, Germinal ; Ambrose, Barbara A ; Moran, Robbin C
creatorcontribVasco, Alejandra ; Lóriga, Josmaily ; Rouhan, Germinal ; Ambrose, Barbara A ; Moran, Robbin C
descriptionElaphoglossum is comprised almost entirely of epiphytic species with simple and entire leaves. Elaphoglossum section Squamipedia is intriguing because four of its species have dissected leaves. To generate a phylogenetic hypothesis of the relationships among all taxa belonging to section Squamipedia, we assembled a three-locus plastid dataset that included all recognized species in the section plus taxa representing all other sections of Elaphoglossum and three bolbitidoid genera. Our results support section Squamipedia as monophyletic. The species belonging to section Squamipedia are recovered in two well supported clades. The first clade includes two species endemic to Madagascar, whereas the second includes 16 species endemic to the Neotropics. Echinulate spores are synapomophic for the Neotropical species of section Squamipedia. Other characters that characterize most species of section Squamipedia are long-creeping rhizomes and absence of phyllopodia; however, two species of section Squamipedia (E. nidusoides and E. nidiforme) have phyllopodia and short-creeping rhizomes. The four species with dissected leaves belong to different clades and had independent origins from ancestors with simple, entire leaves. Dissected leaves have evolved at least six times during the history of Elaphoglossum. Elaphoglossum lloense and E. squamipes, two species defined on the basis of morphology, are not supported by our molecular analyses, being recovered in three and two different clades, respectively.
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subjectBotany ; Ferns ; Genetic aspects ; Identification and classification ; Leaf Dissection ; Nomenclature ; Observations ; Phylogeny ; Systematics ; Taxonomy
ispartofSystematic botany, 2015-02, Vol.40 (1), p.46-55
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descriptionElaphoglossum is comprised almost entirely of epiphytic species with simple and entire leaves. Elaphoglossum section Squamipedia is intriguing because four of its species have dissected leaves. To generate a phylogenetic hypothesis of the relationships among all taxa belonging to section Squamipedia, we assembled a three-locus plastid dataset that included all recognized species in the section plus taxa representing all other sections of Elaphoglossum and three bolbitidoid genera. Our results support section Squamipedia as monophyletic. The species belonging to section Squamipedia are recovered in two well supported clades. The first clade includes two species endemic to Madagascar, whereas the second includes 16 species endemic to the Neotropics. Echinulate spores are synapomophic for the Neotropical species of section Squamipedia. Other characters that characterize most species of section Squamipedia are long-creeping rhizomes and absence of phyllopodia; however, two species of section Squamipedia (E. nidusoides and E. nidiforme) have phyllopodia and short-creeping rhizomes. The four species with dissected leaves belong to different clades and had independent origins from ancestors with simple, entire leaves. Dissected leaves have evolved at least six times during the history of Elaphoglossum. Elaphoglossum lloense and E. squamipes, two species defined on the basis of morphology, are not supported by our molecular analyses, being recovered in three and two different clades, respectively.
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titleDivided Leaves in the Genus Elaphoglossum (Dryopteridaceae): A Phylogeny of Elaphoglossum Section Squamipedia
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abstractElaphoglossum is comprised almost entirely of epiphytic species with simple and entire leaves. Elaphoglossum section Squamipedia is intriguing because four of its species have dissected leaves. To generate a phylogenetic hypothesis of the relationships among all taxa belonging to section Squamipedia, we assembled a three-locus plastid dataset that included all recognized species in the section plus taxa representing all other sections of Elaphoglossum and three bolbitidoid genera. Our results support section Squamipedia as monophyletic. The species belonging to section Squamipedia are recovered in two well supported clades. The first clade includes two species endemic to Madagascar, whereas the second includes 16 species endemic to the Neotropics. Echinulate spores are synapomophic for the Neotropical species of section Squamipedia. Other characters that characterize most species of section Squamipedia are long-creeping rhizomes and absence of phyllopodia; however, two species of section Squamipedia (E. nidusoides and E. nidiforme) have phyllopodia and short-creeping rhizomes. The four species with dissected leaves belong to different clades and had independent origins from ancestors with simple, entire leaves. Dissected leaves have evolved at least six times during the history of Elaphoglossum. Elaphoglossum lloense and E. squamipes, two species defined on the basis of morphology, are not supported by our molecular analyses, being recovered in three and two different clades, respectively.
pubAmerican Society of Plant Toxonomists
doi10.1600/036364415X686323
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