@ARTICLE{TreeBASE2Ref17526,
author = {Maryanne C. Simurda and David C. Marshall and John S. Knox},
title = {Phylogeography of the narrow endemic, Helenium virginicum (Asteraceae), based upon ITS sequence comparisons},
year = {2005},
keywords = {},
doi = {},
url = {},
pmid = {},
journal = {Systematic Botany},
volume = {},
number = {},
pages = {},
abstract = {The federally listed threatened species, Helenium virginicum, is endemic to 30 sinkhole ponds in two counties in Virginia, but a Helenium population in Pomona, Missouri, differs scarcely from H. virginicum from Virginia in morphology, ecology, and non-coding nrDNA ITS sequences. In response to continuing taxonomic uncertainty regarding the Missouri population, we enlarged our ITS comparisons from our previous work to include 48 populations, more than doubling the number of H. virginicum populations, and including populations of H. autumnale and H. flexuosum from 12 states in the United States and two Canadian provinces. Phylogenetic analyses were conducted using Bayesian, maximum-likelihood, and maximum-parsimony methods, and showed strong support for a monophyletic species of all H. virginicum from Virginia, the Pomona population and 29 other recently discovered populations in Missouri. We conclude that H. virginicum is narrowly endemic and disjunct between Virginia and Missouri. Additionally, one population of H. autumnale from the Bruce Peninsula, Canada, was found to be the sister group to H. virginicum. We discuss the impact of Pleistocene and Holocene geoclimatic changes on the phylogeography of these plants, including the possibility that the H. autumnale complex has become more disjunct and narrowly endemic since the Xerothermic Period (8-4Ka).}
}
Citation for Study 1368
Citation title:
"Phylogeography of the narrow endemic, Helenium virginicum (Asteraceae), based upon ITS sequence comparisons".
This study was previously identified under the legacy study ID S1297
(Status: Published).
Citation
Simurda M., Marshall D., & Knox J. 2005. Phylogeography of the narrow endemic, Helenium virginicum (Asteraceae), based upon ITS sequence comparisons. Systematic Botany, null.
Authors
-
Simurda M.
-
Marshall D.
-
Knox J.
Abstract
The federally listed threatened species, Helenium virginicum, is endemic to 30 sinkhole ponds in two counties in Virginia, but a Helenium population in Pomona, Missouri, differs scarcely from H. virginicum from Virginia in morphology, ecology, and non-coding nrDNA ITS sequences. In response to continuing taxonomic uncertainty regarding the Missouri population, we enlarged our ITS comparisons from our previous work to include 48 populations, more than doubling the number of H. virginicum populations, and including populations of H. autumnale and H. flexuosum from 12 states in the United States and two Canadian provinces. Phylogenetic analyses were conducted using Bayesian, maximum-likelihood, and maximum-parsimony methods, and showed strong support for a monophyletic species of all H. virginicum from Virginia, the Pomona population and 29 other recently discovered populations in Missouri. We conclude that H. virginicum is narrowly endemic and disjunct between Virginia and Missouri. Additionally, one population of H. autumnale from the Bruce Peninsula, Canada, was found to be the sister group to H. virginicum. We discuss the impact of Pleistocene and Holocene geoclimatic changes on the phylogeography of these plants, including the possibility that the H. autumnale complex has become more disjunct and narrowly endemic since the Xerothermic Period (8-4Ka).
About this resource
- Canonical resource URI:
http://purl.org/phylo/treebase/phylows/study/TB2:S1368
- Other versions:
Nexus
NeXML
- Show BibTeX reference
@ARTICLE{TreeBASE2Ref17526,
author = {Maryanne C. Simurda and David C. Marshall and John S. Knox},
title = {Phylogeography of the narrow endemic, Helenium virginicum (Asteraceae), based upon ITS sequence comparisons},
year = {2005},
keywords = {},
doi = {},
url = {},
pmid = {},
journal = {Systematic Botany},
volume = {},
number = {},
pages = {},
abstract = {The federally listed threatened species, Helenium virginicum, is endemic to 30 sinkhole ponds in two counties in Virginia, but a Helenium population in Pomona, Missouri, differs scarcely from H. virginicum from Virginia in morphology, ecology, and non-coding nrDNA ITS sequences. In response to continuing taxonomic uncertainty regarding the Missouri population, we enlarged our ITS comparisons from our previous work to include 48 populations, more than doubling the number of H. virginicum populations, and including populations of H. autumnale and H. flexuosum from 12 states in the United States and two Canadian provinces. Phylogenetic analyses were conducted using Bayesian, maximum-likelihood, and maximum-parsimony methods, and showed strong support for a monophyletic species of all H. virginicum from Virginia, the Pomona population and 29 other recently discovered populations in Missouri. We conclude that H. virginicum is narrowly endemic and disjunct between Virginia and Missouri. Additionally, one population of H. autumnale from the Bruce Peninsula, Canada, was found to be the sister group to H. virginicum. We discuss the impact of Pleistocene and Holocene geoclimatic changes on the phylogeography of these plants, including the possibility that the H. autumnale complex has become more disjunct and narrowly endemic since the Xerothermic Period (8-4Ka).}
}
- Show RIS reference
TY - JOUR
ID - 17526
AU - Simurda,Maryanne C.
AU - Marshall,David C.
AU - Knox,John S.
T1 - Phylogeography of the narrow endemic, Helenium virginicum (Asteraceae), based upon ITS sequence comparisons
PY - 2005
KW -
UR -
N2 - The federally listed threatened species, Helenium virginicum, is endemic to 30 sinkhole ponds in two counties in Virginia, but a Helenium population in Pomona, Missouri, differs scarcely from H. virginicum from Virginia in morphology, ecology, and non-coding nrDNA ITS sequences. In response to continuing taxonomic uncertainty regarding the Missouri population, we enlarged our ITS comparisons from our previous work to include 48 populations, more than doubling the number of H. virginicum populations, and including populations of H. autumnale and H. flexuosum from 12 states in the United States and two Canadian provinces. Phylogenetic analyses were conducted using Bayesian, maximum-likelihood, and maximum-parsimony methods, and showed strong support for a monophyletic species of all H. virginicum from Virginia, the Pomona population and 29 other recently discovered populations in Missouri. We conclude that H. virginicum is narrowly endemic and disjunct between Virginia and Missouri. Additionally, one population of H. autumnale from the Bruce Peninsula, Canada, was found to be the sister group to H. virginicum. We discuss the impact of Pleistocene and Holocene geoclimatic changes on the phylogeography of these plants, including the possibility that the H. autumnale complex has become more disjunct and narrowly endemic since the Xerothermic Period (8-4Ka).
L3 -
JF - Systematic Botany
VL -
IS -
ER -
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