@ARTICLE{TreeBASE2Ref15090,
author = {Patricia B. Cox and Lowell E. Urbatsch},
title = {A phylogenetic analysis of the coneflower genera (Asteraceae: Heliantheae).},
year = {1990},
keywords = {},
doi = {},
url = {},
pmid = {},
journal = {Systematic Botany},
volume = {15},
number = {},
pages = {394--402},
abstract = {The coneflowers include the genera Dracopis, Echinacea, Ratibida, and Rudbeckia, with Rudbeckia being divided into sects. Rudbeckia, Macrocline and Laciniata. As part of a monographic study of Rudbeckia sects. Macrocline and Laciniata, relationships to other nearby Heliantheae needed to be assessed. Stuessy grouped the four coneflower genera together within the subtribe Helianthinae. Later, Robinson erected the subtribe Rudbeckiinae to include Dracopis, Ratibida, and Rudbeckia. He removed Echinacea to the subtribe Ecliptinae on the bases of chromosome number and anatomical features and suggested a probable relationship to the genera Balsamorhiza, Helianthella, and Wyethia. In the current work, twenty-eight qualitative characters were chosen for cladistic analysis performed by the Branch and Bound algorithm in PAUP, which guarantees discovery of the most parsimonious tree. This analysis supports the historical placement of Echinacea with the coneflowers. The resulting cladogram presents the Rudbeckiinae as a monophyletic taxon with the genera of the Ecliptinae forming a group distinct from the coneflowers. The clade of the sister taxa, Dracopis and Ratibida, is related to a clade containing two distinct groups, one of Echinacea and Rudbeckia sect. Macrocline and the other of Rudbeckia sect. Rudbeckia and sect. Laciniata.}
}
Citation for Study 150
Citation title:
"A phylogenetic analysis of the coneflower genera (Asteraceae: Heliantheae).".
This study was previously identified under the legacy study ID S1x29x96c15c05c02
(Status: Published).
Citation
Cox P., & Urbatsch L. 1990. A phylogenetic analysis of the coneflower genera (Asteraceae: Heliantheae). Systematic Botany, 15: 394-402.
Authors
Abstract
The coneflowers include the genera Dracopis, Echinacea, Ratibida, and Rudbeckia, with Rudbeckia being divided into sects. Rudbeckia, Macrocline and Laciniata. As part of a monographic study of Rudbeckia sects. Macrocline and Laciniata, relationships to other nearby Heliantheae needed to be assessed. Stuessy grouped the four coneflower genera together within the subtribe Helianthinae. Later, Robinson erected the subtribe Rudbeckiinae to include Dracopis, Ratibida, and Rudbeckia. He removed Echinacea to the subtribe Ecliptinae on the bases of chromosome number and anatomical features and suggested a probable relationship to the genera Balsamorhiza, Helianthella, and Wyethia. In the current work, twenty-eight qualitative characters were chosen for cladistic analysis performed by the Branch and Bound algorithm in PAUP, which guarantees discovery of the most parsimonious tree. This analysis supports the historical placement of Echinacea with the coneflowers. The resulting cladogram presents the Rudbeckiinae as a monophyletic taxon with the genera of the Ecliptinae forming a group distinct from the coneflowers. The clade of the sister taxa, Dracopis and Ratibida, is related to a clade containing two distinct groups, one of Echinacea and Rudbeckia sect. Macrocline and the other of Rudbeckia sect. Rudbeckia and sect. Laciniata.
About this resource
- Canonical resource URI:
http://purl.org/phylo/treebase/phylows/study/TB2:S150
- Other versions:
Nexus
NeXML
- Show BibTeX reference
@ARTICLE{TreeBASE2Ref15090,
author = {Patricia B. Cox and Lowell E. Urbatsch},
title = {A phylogenetic analysis of the coneflower genera (Asteraceae: Heliantheae).},
year = {1990},
keywords = {},
doi = {},
url = {},
pmid = {},
journal = {Systematic Botany},
volume = {15},
number = {},
pages = {394--402},
abstract = {The coneflowers include the genera Dracopis, Echinacea, Ratibida, and Rudbeckia, with Rudbeckia being divided into sects. Rudbeckia, Macrocline and Laciniata. As part of a monographic study of Rudbeckia sects. Macrocline and Laciniata, relationships to other nearby Heliantheae needed to be assessed. Stuessy grouped the four coneflower genera together within the subtribe Helianthinae. Later, Robinson erected the subtribe Rudbeckiinae to include Dracopis, Ratibida, and Rudbeckia. He removed Echinacea to the subtribe Ecliptinae on the bases of chromosome number and anatomical features and suggested a probable relationship to the genera Balsamorhiza, Helianthella, and Wyethia. In the current work, twenty-eight qualitative characters were chosen for cladistic analysis performed by the Branch and Bound algorithm in PAUP, which guarantees discovery of the most parsimonious tree. This analysis supports the historical placement of Echinacea with the coneflowers. The resulting cladogram presents the Rudbeckiinae as a monophyletic taxon with the genera of the Ecliptinae forming a group distinct from the coneflowers. The clade of the sister taxa, Dracopis and Ratibida, is related to a clade containing two distinct groups, one of Echinacea and Rudbeckia sect. Macrocline and the other of Rudbeckia sect. Rudbeckia and sect. Laciniata.}
}
- Show RIS reference
TY - JOUR
ID - 15090
AU - Cox,Patricia B.
AU - Urbatsch,Lowell E.
T1 - A phylogenetic analysis of the coneflower genera (Asteraceae: Heliantheae).
PY - 1990
UR -
N2 - The coneflowers include the genera Dracopis, Echinacea, Ratibida, and Rudbeckia, with Rudbeckia being divided into sects. Rudbeckia, Macrocline and Laciniata. As part of a monographic study of Rudbeckia sects. Macrocline and Laciniata, relationships to other nearby Heliantheae needed to be assessed. Stuessy grouped the four coneflower genera together within the subtribe Helianthinae. Later, Robinson erected the subtribe Rudbeckiinae to include Dracopis, Ratibida, and Rudbeckia. He removed Echinacea to the subtribe Ecliptinae on the bases of chromosome number and anatomical features and suggested a probable relationship to the genera Balsamorhiza, Helianthella, and Wyethia. In the current work, twenty-eight qualitative characters were chosen for cladistic analysis performed by the Branch and Bound algorithm in PAUP, which guarantees discovery of the most parsimonious tree. This analysis supports the historical placement of Echinacea with the coneflowers. The resulting cladogram presents the Rudbeckiinae as a monophyletic taxon with the genera of the Ecliptinae forming a group distinct from the coneflowers. The clade of the sister taxa, Dracopis and Ratibida, is related to a clade containing two distinct groups, one of Echinacea and Rudbeckia sect. Macrocline and the other of Rudbeckia sect. Rudbeckia and sect. Laciniata.
L3 -
JF - Systematic Botany
VL - 15
IS -
SP - 394
EP - 402
ER -
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