@ARTICLE{TreeBASE2Ref17554,
author = {James F. Smith and Kenneth J. Sytsma},
title = {Evolution in the Andean epiphytic genus Columnea (Gesneriaceae). II. Chloroplast DNA restriction site variation.},
year = {1994},
keywords = {},
doi = {},
url = {},
pmid = {},
journal = {Systematic Botany},
volume = {19},
number = {},
pages = {317--336},
abstract = {A cladistic analysis of chloroplast DNA (cpDNA) restriction site variation was performed on Columnea (Gesneriaceae) sections Pentadenia and Stygnanthe. Two species of Alloplectus were included in the analyses and one of Drymonia was used as the outgroup. Restriction site variation was analyzed using Wagner parsimony and character state weighting that favors convergent losses over convergent gains. The large numbers of equally most parsimonious trees prevented examination of each tree independently. Thus, examination of phylogenetic relationships was based on a strict consensus of all most parsimonious trees. The resulting phylogeny is largely congruent with recent classification schemes, although the positions of several species are not in accordance with traditional relationships. As a result of the cladistic analysis of the cpDNA restriction site variation, section Pentadenia is at least paraphyletic, and possibly polyphyletic with section Stygnanthe. The lack of resolution among the several clades within section Stygnanthe does not provide evidence for or against monophyly of this section. Several clades are strongly supported with cpDNA data and provide insight into biogeography and origin of morphological adaptations.}
}
Citation for Study 367
Citation title:
"Evolution in the Andean epiphytic genus Columnea (Gesneriaceae). II. Chloroplast DNA restriction site variation.".
This study was previously identified under the legacy study ID S301
(Status: Published).
Citation
Smith J., & Sytsma K. 1994. Evolution in the Andean epiphytic genus Columnea (Gesneriaceae). II. Chloroplast DNA restriction site variation. Systematic Botany, 19: 317-336.
Authors
Abstract
A cladistic analysis of chloroplast DNA (cpDNA) restriction site variation was performed on Columnea (Gesneriaceae) sections Pentadenia and Stygnanthe. Two species of Alloplectus were included in the analyses and one of Drymonia was used as the outgroup. Restriction site variation was analyzed using Wagner parsimony and character state weighting that favors convergent losses over convergent gains. The large numbers of equally most parsimonious trees prevented examination of each tree independently. Thus, examination of phylogenetic relationships was based on a strict consensus of all most parsimonious trees. The resulting phylogeny is largely congruent with recent classification schemes, although the positions of several species are not in accordance with traditional relationships. As a result of the cladistic analysis of the cpDNA restriction site variation, section Pentadenia is at least paraphyletic, and possibly polyphyletic with section Stygnanthe. The lack of resolution among the several clades within section Stygnanthe does not provide evidence for or against monophyly of this section. Several clades are strongly supported with cpDNA data and provide insight into biogeography and origin of morphological adaptations.
About this resource
- Canonical resource URI:
http://purl.org/phylo/treebase/phylows/study/TB2:S367
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- Show BibTeX reference
@ARTICLE{TreeBASE2Ref17554,
author = {James F. Smith and Kenneth J. Sytsma},
title = {Evolution in the Andean epiphytic genus Columnea (Gesneriaceae). II. Chloroplast DNA restriction site variation.},
year = {1994},
keywords = {},
doi = {},
url = {},
pmid = {},
journal = {Systematic Botany},
volume = {19},
number = {},
pages = {317--336},
abstract = {A cladistic analysis of chloroplast DNA (cpDNA) restriction site variation was performed on Columnea (Gesneriaceae) sections Pentadenia and Stygnanthe. Two species of Alloplectus were included in the analyses and one of Drymonia was used as the outgroup. Restriction site variation was analyzed using Wagner parsimony and character state weighting that favors convergent losses over convergent gains. The large numbers of equally most parsimonious trees prevented examination of each tree independently. Thus, examination of phylogenetic relationships was based on a strict consensus of all most parsimonious trees. The resulting phylogeny is largely congruent with recent classification schemes, although the positions of several species are not in accordance with traditional relationships. As a result of the cladistic analysis of the cpDNA restriction site variation, section Pentadenia is at least paraphyletic, and possibly polyphyletic with section Stygnanthe. The lack of resolution among the several clades within section Stygnanthe does not provide evidence for or against monophyly of this section. Several clades are strongly supported with cpDNA data and provide insight into biogeography and origin of morphological adaptations.}
}
- Show RIS reference
TY - JOUR
ID - 17554
AU - Smith,James F.
AU - Sytsma,Kenneth J.
T1 - Evolution in the Andean epiphytic genus Columnea (Gesneriaceae). II. Chloroplast DNA restriction site variation.
PY - 1994
UR -
N2 - A cladistic analysis of chloroplast DNA (cpDNA) restriction site variation was performed on Columnea (Gesneriaceae) sections Pentadenia and Stygnanthe. Two species of Alloplectus were included in the analyses and one of Drymonia was used as the outgroup. Restriction site variation was analyzed using Wagner parsimony and character state weighting that favors convergent losses over convergent gains. The large numbers of equally most parsimonious trees prevented examination of each tree independently. Thus, examination of phylogenetic relationships was based on a strict consensus of all most parsimonious trees. The resulting phylogeny is largely congruent with recent classification schemes, although the positions of several species are not in accordance with traditional relationships. As a result of the cladistic analysis of the cpDNA restriction site variation, section Pentadenia is at least paraphyletic, and possibly polyphyletic with section Stygnanthe. The lack of resolution among the several clades within section Stygnanthe does not provide evidence for or against monophyly of this section. Several clades are strongly supported with cpDNA data and provide insight into biogeography and origin of morphological adaptations.
L3 -
JF - Systematic Botany
VL - 19
IS -
SP - 317
EP - 336
ER -