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Biogeography and diversification of Brassicales: A 103million year tale.
TLDR
Analysis of plastid and mitochondrial sequence data from five gene regions across 151 taxa indicates that some New World clades embedded amongst Old World relatives (e.g., New World capparoids) are the result of different long distance dispersal events, whereas others may be best explained by land bridge migration. Expand
Molecular Phylogeny and Pollen Evolution of Euphorbiaceae Tribe Plukenetieae
TLDR
P phylogenetic analyses of nuclear ribosomal ITS and plastid psbA-trnH DNA sequence and indel gap-scored data support the monophyly of each subtribe and weakly suggest Dalechampiinae (Dalechampia) is sister to Plukenetiinee + Tragiinae. Expand
Seed size evolution and biogeography of Plukenetia (Euphorbiaceae), a pantropical genus with traditionally cultivated oilseed species
TLDR
The authors' analyses suggest Plukenetia originated in the Amazon or Atlantic Forest of Brazil during the Oligocene and migrated/dispersed between those regions and Central America/Mexico throughout the Miocene, and infer a single origin of large seeds in the ancestor of Plukanetia. Expand
Increased competition does not lead to increased phylogenetic overdispersion in a native grassland.
TLDR
It is suggested that specific conditions related to the form of competition and trait conservatism must be met for competition to cause phylogenetic overdispersion, and overdisPersion as a result of competition is likely to be rare in natural communities. Expand
A revision of generic boundaries and nomenclature in the North American cleomoid clade (Cleomaceae)
TLDR
The family Cleomaceae is in need of taxonomic revision, which begins here with a set of taxa informally recognized as the North American cleomoid clade, and the option to create the single large genus Cleomella is proposed, and one new name is provided. Expand
Phylogenetic relationships among the North American cleomoids (Cleomaceae): a test of Iltis's reduction series.
TLDR
The authors' well-resolved phylogeny supports most of the current species circumscription but not current generic circumscriptions, and results are inconsistent with Iltis's hypothesis of species with elongated many-seed fruits giving rise to species with truncated few-seeded fruits. Expand
Sansevieria (Asparagaceae, Nolinoideae) is a herbaceous clade within Dracaena : inference from non-coding plastid and nuclear DNA sequence data
TLDR
The backbone of the phylogeny was only resolved in nDNA analyses, but combined analyses recovered strongly supported species groups and a recent proposal to recognise a broadened circumscription of Dracaena that includes Sansevieria is supported. Expand
Monadelpha (Euphorbiaceae, Plukenetieae), a new genus of Tragiinae from the Amazon rainforest of Venezuela and Brazil.
TLDR
Phylogenetic analyses based on nuclear rDNA ITS and sampling 156 accessions across the diversity of Tragiinae also support Monadelpha as a distinct lineage that is separate from Tragia. Expand
A Revised Sectional Classification of Plukenetia L. (Euphorbiaceae, Acalyphoideae) with Four New Species from South America
TLDR
A phylogenetic classification for Plukenetia (Euphorbiaceae, Acalyphoideae) based on morphology and molecular phylogenetic studies using nuclear and plastid DNA data supports the new taxa as distinct. Expand
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