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Patterns and causes of incongruence between plastid and nuclear Senecioneae (Asteraceae) phylogenies.
TLDR
A novel approach to evaluate whether ILS can be excluded as an explanation for incongruent patterns within Tribe Senecioneae (Asteraceae) indicates that ILS cannot be invoked and these patterns are more realistically explained by ancient hybridization events. Expand
Phylogeny and taxonomic revision of the Planistromellaceae including its coelomycetous anamorphs: contributions towards a monograph of the genus Kellermania
TLDR
Species representing the core genera of the Planistromellaceae formed a clade and evaluation of its topology revealed that previous morphology-based definitions of genera resulted in an artificial classification system. Expand
Bioactive constituents of Helianthus tuberosus (Jerusalem artichoke)
TLDR
This is the first time that diterpenes have been isolated and identified from this economically important plant and showed that two germacrane-type sesquiterpene lactones, 5 and 6, are cytotoxic agents. Expand
Mycorrhizal specificity in the fully mycoheterotrophic Hexalectris Raf. (Orchidaceae: Epidendroideae)
TLDR
The first investigation of the mycorrhizal associates of all species of a well‐characterized orchid genus comprised exclusively of mycoheterotrophic species is presented, suggesting strong selection within divergent lineages for unique associations with narrow clades of mycorRhizal fungi. Expand
Asperisporium and Pantospora (Mycosphaerellaceae): epitypifications and phylogenetic placement
TLDR
An examination of the type species of the anamorphic Asperisporium and Pantospora is presented and DNA sequence data from the ITS region and nLSU were analysed phylogenetically, placed into an evolutionary context within Mycosphaerellaceae, and compared to existing phylogenies. Expand
The genetic ghost of an invasion past: colonization and extinction revealed by historical hybridization in Senecio
TLDR
Senecio massaicus, a tetraploid species native to Morocco and the Canary Islands, contains genetic material of two distinct, geographically separated lineages: a Mediterranean lineage and a mainly southern African lineage, which includes S. inaequidens, a highly invasive species that has recently become widespread throughout Europe. Expand
The Population Genetic Structure of The Showy Lady's-slipper Orchid (Cypripedium Reginae Walter) in Its Glaciated and Unglaciated Ranges
TLDR
Analysis of Cypripedium reginae populations from previously glaciated and unglaciated sites indicated low species- and population-level diversity and moderate population differentiation, which is attributed to founder effect during Pleistocene range shifts, genetic bottlenecks in a relatively small refugial southern range, and genetic drift in small and isolated southern populations during glacial advance. Expand
Biomechanics of conidial dispersal in the toxic mold Stachybotrys chartarum.
TLDR
Micromanipulation of undisturbed colonies showed that micronewton (microN) forces were needed to dislodge spore clusters from their supporting conidiophores, and low-velocity airflow does not cause sufficient disturbance to disperse a large proportion of the conidia of S. chartarum. Expand
Plastid Genome Degradation in the Endangered, Mycoheterotrophic, North American Orchid Hexalectris warnockii
TLDR
The Hexalectris warnockii plastid genome adds to a growing body of data useful in refining evolutionary models in parasites, and provides a resource for conservation studies in these endangered orchids. Expand
Species Delimitations and Phylogenetic Relationships within the Fully Myco-Heterotrophic Hexalectris (Orchidaceae)
Abstract Phylogenetic analyses were conducted on six plastid markers and ITS from 43 accessions representing all eight currently recognized Hexalectris species with the goals of testing speciesExpand
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