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Disintegration of the scrophulariaceae.
A molecular systematic study of Scrophulariaceae sensu lato using DNA sequences of three plastid genes revealed at least five distinct monophyletic groups, which are newly erected herein to recognize the phylogenetic distinctiveness of tribe Calceolarieae. Expand
Phylogeny and origins of holoparasitism in Orobanchaceae.
There is a single origin of parasitism, and from within the hemiparasites, holoparasitism has originated three times. Expand
Assessing hybridization in natural populations of Penstemon (Scrophulariaceae) using hypervariable intersimple sequence repeat (ISSR) bands
The results do not support the hybrid origin of P. spectabilis, but do support the hypothesis that P. clevelandii is a diploid hybrid species derived from P. centranthifolius, and demonstrate that pollen‐mediated gene flow via hummingbird vectors is prevalent in the hybrid complex. Expand
Evolution of plastid gene rps2 in a lineage of hemiparasitic and holoparasitic plants: many losses of photosynthesis and complex patterns of rate variation.
It is suggested that there may be substantial molecular evolutionary changes to the plastid genome of parasites before the loss of photosynthesis, and independent patterns of synonymous and nonsynonymous rate acceleration in rps2 point to distinct mechanisms underlying rate variation in different lineages. Expand
Contributions of PCR-Based Methods to Plant Systematics and Evolutionary Biology
There are many other techniques aside from DNA sequencing in which PCR is appropriate and extremely useful, and these applications of PCR in plant systematics are reviewed. Expand
Clonal diversity in the rare Calamagrostis porteri ssp. insperata (Poaceae): comparative results for allozymes and random amplified polymorphic DNA (RAPD) and intersimple sequence repeat (ISSR)
Four populations of the rare, highly clonal grass Calamagrostis porteri ssp. insperata were examined using allozymes and the two polymerase chain reaction (PCR)‐based markers, random amplifiedExpand
HyDe: A Python Package for Genome‐Scale Hybridization Detection
This article introduces HyDe, a software package for detecting hybridization using phylogenetic invariants arising under the coalescent model with hybridization, and focuses in particular on identifying individual hybrids within population samples and on distinguishing between hybrid speciation and gene flow. Expand
Phylogeny, taxonomic affinities, and biogeography of Penstemon (Plantaginaceae) based on ITS and cpDNA sequence data.
The results from these analyses show that the current circumscription of subgenera and sections needs revision to reflect more closely the evolutionary relationships of species, and confirm the independent origin of hummingbird floral morphology in 10 clades. Expand
Molecular Phylogenetic and Evolutionary Studies of Parasitic Plants
This work uses the term parasite in a strict sense to refer to haustorial parasites, which represent about 1% of all angiosperms and are restricted to the dicot subclasses Magnoliidae, Rosidae, and Asteridae. Expand
Phylogeny and biogeography ofOrobanchaceae
The results support the current classification of Orobanchaceae and a hypothesis of a mid-Tertiary, Laurasian origin of the family and a single-most parsimonious ITS tree was produced from a combined data set of nucleotides and gap characters. Expand