@ARTICLE{TreeBASE2Ref17556,
author = {James F. Smith and Kenneth J. Sytsma},
title = {Evolution in the Andean epiphytic genus Columnea (Gesneriaceae). I. Morphological variation.},
year = {1994},
keywords = {},
doi = {},
url = {},
pmid = {},
journal = {Systematic Botany},
volume = {19},
number = {},
pages = {220--235},
abstract = {A cladistic analysis was performed on morphological data from seven of the nine species of Columnea section Pentadenia and sixteen of the eighteen species of section Stygnanthe (Gesneriaceae). A nested, global outgroup analysis was performed by including representatives of three other sections of Columnea and two species each of the closely related genera Alloplectus and Drymonia. Twenty characters were scored as binary, and thirteen were scored as multi-state. All characters scored were qualitative. Because of the high levels of homoplasy in the Gesneriaceae, simple characters were not found to be useful and more complex characters comprising several simple characters were necessary to provide resolution. The data were analyzed using Wagner parsimony, resulting in eight most parsimonious trees. In general, the phylogeny was congruent with current classification schemes and phylogenies derived from molecular data and combined molecular and morphological data. However, several phylogenetic relationships that result from the analysis of morphological data are suspect based on other data. The monophyly of Alloplectus is not supported solely with morphological data, although other data support its monophyly. Inferences regarding the biogeographic history and evolution of Columnea sections Pentadenia and Stygnanthe indicate a southern Andean origin for the genus Columnea with a subsequent migration and radiation northward.}
}
Citation for Study 368
Citation title:
"Evolution in the Andean epiphytic genus Columnea (Gesneriaceae). I. Morphological variation.".
This study was previously identified under the legacy study ID S302
(Status: Published).
Citation
Smith J., & Sytsma K. 1994. Evolution in the Andean epiphytic genus Columnea (Gesneriaceae). I. Morphological variation. Systematic Botany, 19: 220-235.
Authors
Abstract
A cladistic analysis was performed on morphological data from seven of the nine species of Columnea section Pentadenia and sixteen of the eighteen species of section Stygnanthe (Gesneriaceae). A nested, global outgroup analysis was performed by including representatives of three other sections of Columnea and two species each of the closely related genera Alloplectus and Drymonia. Twenty characters were scored as binary, and thirteen were scored as multi-state. All characters scored were qualitative. Because of the high levels of homoplasy in the Gesneriaceae, simple characters were not found to be useful and more complex characters comprising several simple characters were necessary to provide resolution. The data were analyzed using Wagner parsimony, resulting in eight most parsimonious trees. In general, the phylogeny was congruent with current classification schemes and phylogenies derived from molecular data and combined molecular and morphological data. However, several phylogenetic relationships that result from the analysis of morphological data are suspect based on other data. The monophyly of Alloplectus is not supported solely with morphological data, although other data support its monophyly. Inferences regarding the biogeographic history and evolution of Columnea sections Pentadenia and Stygnanthe indicate a southern Andean origin for the genus Columnea with a subsequent migration and radiation northward.
About this resource
- Canonical resource URI:
http://purl.org/phylo/treebase/phylows/study/TB2:S368
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Nexus
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- Show BibTeX reference
@ARTICLE{TreeBASE2Ref17556,
author = {James F. Smith and Kenneth J. Sytsma},
title = {Evolution in the Andean epiphytic genus Columnea (Gesneriaceae). I. Morphological variation.},
year = {1994},
keywords = {},
doi = {},
url = {},
pmid = {},
journal = {Systematic Botany},
volume = {19},
number = {},
pages = {220--235},
abstract = {A cladistic analysis was performed on morphological data from seven of the nine species of Columnea section Pentadenia and sixteen of the eighteen species of section Stygnanthe (Gesneriaceae). A nested, global outgroup analysis was performed by including representatives of three other sections of Columnea and two species each of the closely related genera Alloplectus and Drymonia. Twenty characters were scored as binary, and thirteen were scored as multi-state. All characters scored were qualitative. Because of the high levels of homoplasy in the Gesneriaceae, simple characters were not found to be useful and more complex characters comprising several simple characters were necessary to provide resolution. The data were analyzed using Wagner parsimony, resulting in eight most parsimonious trees. In general, the phylogeny was congruent with current classification schemes and phylogenies derived from molecular data and combined molecular and morphological data. However, several phylogenetic relationships that result from the analysis of morphological data are suspect based on other data. The monophyly of Alloplectus is not supported solely with morphological data, although other data support its monophyly. Inferences regarding the biogeographic history and evolution of Columnea sections Pentadenia and Stygnanthe indicate a southern Andean origin for the genus Columnea with a subsequent migration and radiation northward.}
}
- Show RIS reference
TY - JOUR
ID - 17556
AU - Smith,James F.
AU - Sytsma,Kenneth J.
T1 - Evolution in the Andean epiphytic genus Columnea (Gesneriaceae). I. Morphological variation.
PY - 1994
UR -
N2 - A cladistic analysis was performed on morphological data from seven of the nine species of Columnea section Pentadenia and sixteen of the eighteen species of section Stygnanthe (Gesneriaceae). A nested, global outgroup analysis was performed by including representatives of three other sections of Columnea and two species each of the closely related genera Alloplectus and Drymonia. Twenty characters were scored as binary, and thirteen were scored as multi-state. All characters scored were qualitative. Because of the high levels of homoplasy in the Gesneriaceae, simple characters were not found to be useful and more complex characters comprising several simple characters were necessary to provide resolution. The data were analyzed using Wagner parsimony, resulting in eight most parsimonious trees. In general, the phylogeny was congruent with current classification schemes and phylogenies derived from molecular data and combined molecular and morphological data. However, several phylogenetic relationships that result from the analysis of morphological data are suspect based on other data. The monophyly of Alloplectus is not supported solely with morphological data, although other data support its monophyly. Inferences regarding the biogeographic history and evolution of Columnea sections Pentadenia and Stygnanthe indicate a southern Andean origin for the genus Columnea with a subsequent migration and radiation northward.
L3 -
JF - Systematic Botany
VL - 19
IS -
SP - 220
EP - 235
ER -
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