An ITS phylogeny of Balsamorhiza and Wyethia (Asteraceae: Heliantheae).

  title={An ITS phylogeny of Balsamorhiza and Wyethia (Asteraceae: Heliantheae).},
  author={Abigail J. Moore and Lynn Bohs},
  journal={American journal of botany},
  volume={90 11},
The relationships among the species of Balsamorhiza and Wyethia (Asteraceae: Heliantheae) were examined using data from the internal transcribed spacer (ITS) region of the nuclear ribosomal DNA. The ITS sequences were obtained from nine species of Balsamorhiza and 14 species of Wyethia as well as seven outgroup genera. Five of the outgroup genera were members of the subtribe Engelmanniinae of the tribe Heliantheae, the subtribe that includes Balsamorhiza and Wyethia. The resulting trees show… Expand
Phylogeny of Balsamorhiza and Wyethia (Asteraceae: Heliantheae) Using Its, Ets, and trnK Sequence Data
The analyses support the monophyly of the Balsamorhiza/Wyethia clade, a clade of perennial herbs with large taproots and chromosome base numbers of x  =  19 that form aClade in the molecular trees and share synapomorphic large basal leaves. Expand
Ragweeds and relatives: Molecular phylogenetics of Ambrosiinae (Asteraceae).
Subtribe Ambrosiinae is found monophyletic or nearly so in all analyses and relationships among its genera are examined, allowing consideration of relationships among species and subgeneric groups within Parthenium, Iva, and Ambrosia. Expand
Molecular phylogenetic analyses of nuclear and plastid DNA sequences support dysploid and polyploid chromosome number changes and reticulate evolution in the diversification of Melampodium (Millerieae, Asteraceae).
Dysploidy has clearly been important during evolution of the genus Melampodium and the complex pattern of bifurcating phylogenetic structure among diploid taxa overlain by reticulate relationships from allopolyploids has non-trivial implications for intrasectional classification. Expand
Abstract Wyethia reticulata Greene is a rare perennial herb found only on gabbro-derived soils of the Pine Hill formation in the Sierra Nevada foothills of El Dorado County, CA. Wyethia reticulata isExpand
Pollination needs of arrowleaf balsamroot, Balsamorhiza sagittata (Heliantheae: Asteraceae)
Through manual pollination field trials, the species was found to have a mixed pollination system, primarily xenogamous but partially self-compatible, and two species of Osmia bees rely mostly on Balsamorhiza and its close relative, Wyethia , for pollen. Expand
Specialist Osmia bees forage indiscriminately among hybridizing Balsamorhiza floral hosts
  • J. Cane
  • Biology, Medicine
  • Oecologia
  • 2011
Foraging infidelity by these oligolectic Osmia bees will contribute to introgression and hybridization where interfertile species of Balsamorhiza meet and flower together, and the Connoisseur Hypothesis was rejected. Expand


Phylogenetic analysis of Silphium and subtribe Engelmanniinae (Asteraceae: Heliantheae) based on ITS and ETS sequence data.
It is suggested that the cypsela complex, which is present in Berlandiera, Chrysogonum, Engelmannia, and Lindheimera, arose only once and was subsequently lost in Silphium, and supported the expansion of subtribe Engelmanniinae to include Balsamorhiza, Borrichia, Rojasianthe, Vigethia and Wyethia. Expand
Phylogenetic relationships of subtribe Ecliptinae (Asteraceae: Heliantheae) based on chloroplast DNA restriction site data.
Phylogenetic analysis of chloroplast DNA restriction site data for 76 of the 302 genera of Heliantheae sensu lato using 16 restriction endonucleases reveals that subtribe Ecliptinae is polyphyleticExpand
Phylogeny of the Coneflowers and Relatives (Heliantheae: Asteraceae) Based on Nuclear rDNA Internal Transcribed Spacer (ITS) Sequences and Chlorplast DNA Restriction Site Data
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Nuclear rDNA Evidence for Major Lineages of Helenioid Heliantheae (Compositae)
Pappi of bristles or bristle-like subulate scales have arisen in various lineages of Heliantheae s.s.l. and in general have received too much weight in previous circumscriptions of suprageneric taxa, according to the phylogenetic data. Expand
The Genus Helianthella (Compositae)
The present study is essentially a taxonomic and geographic one and was undertaken as a prerequisite to genetic analyses and experimental studies which are be3ng made concerninig the various genera of the tribe Heliantheae. Expand
Balsamorhiza comprises about 12 species of perennial sunflowers native to the western and northwestern United States and adjacent parts of Canada and is unusual in being one of the few entities in the genus in which natural hybridization is unknown. Expand
Genetic diversity and structure of the narrow endemic Wyethia reticulata and its congener W. bolanderi (Asteraceae) using RAPD and allozyme techniques.
Limited gene flow, drift within small populations, and sexual reproductive dominance of large clones result in the genetic divergence of populations in this species, while genetic diversity is maintained by the longevity of clones and outbreeding. Expand
Phylogenetic affinities among and within the coneflower genera (Asteraceae, Heliantheae), a chloroplast DNA analysis
Chloroplast DNA data support Robinson's subtribal disposition of the coneflower genera, including Echinacea and Rudbeckia, and two evolutionary lineages were supported. Expand
A revision of the tribal and subtribal limits of the Heliantheae (Asteraceae)
The tribe Heliantheae is expanded to include the genera previously placed in the tribe Heienieae and many genera from the Senecioneae, and thirty-five subtribes are recognized and described. Expand
a molecular phylogeny of apiaceae subfamily Apioideae: evidence from nuclear ribosomal DNA internal transcribed spacer sequences
IT sequences are useful for phylogenetic inference among closely related members of Apioideae but, owing to high rates of nucleotide substitution, are less useful in resolving relationships among the more ancestral nodes of the phylogeny. Expand