Search Results - "Freudenstein, John V."

Phylogenetic relationships in Epidendroideae (Orchidaceae), one of the great flowering plant radiations: progressive specialization and diversification by Freudenstein, John V., Chase, Mark W.

“…The largest subfamily of orchids, Epidendroideae, represents one of the most significant diversifications among flowering plants in terms of pollination…”
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Investigating the path of plastid genome degradation in an early-transitional clade of heterotrophic orchids, and implications for heterotrophic angiosperms by Barrett, Craig F, Freudenstein, John V, Li, Jeff, Mayfield-Jones, Dustin R, Perez, Leticia, Pires, J Chris, Santos, Cristian

“…Parasitic organisms exemplify morphological and genomic reduction. Some heterotrophic, parasitic plants harbor drastically reduced and degraded plastid genomes…”
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Total duplication of the small single copy region in the angiosperm plastome: Rearrangement and inverted repeat instability in Asarum by Sinn, Brandon T., Sedmak, Dylan D., Kelly, Lawrence M., Freudenstein, John V.

“…Premise of the Study As more plastomes are assembled, it is evident that rearrangements, losses, intergenic spacer expansion and contraction, and syntenic…”
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Evolution of mycoheterotrophy in plants: a phylogenetic perspective by Merckx, Vincent, Freudenstein, John V.

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On the brink: the highly reduced plastomes of nonphotosynthetic Ericaceae by Braukmann, Thomas W. A., Broe, Michael B., Stefanović, Saša, Freudenstein, John V.

“…Ericaceae (the heather family) is a large and diverse group of plants that forms elaborate symbiotic relationships with mycorrhizal fungi, and includes several…”
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A Protocol for Targeted Enrichment of Intron-Containing Sequence Markers for Recent Radiations: A Phylogenomic Example from Heuchera (Saxifragaceae) by Folk, Ryan A, Mandel, Jennifer R, Freudenstein, John V

“…Premise of the study: Phylogenetic inference is moving to large multilocus data sets, yet there remains uncertainty in the choice of marker and sequencing…”
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A Reanalysis of Relationships Among Calypsoinae (Orchidaceae: Epidendroideae): Floral and Vegetative Evolution and the Placement of Yoania by Freudenstein, John V., Yukawa, Tomohisa, Luo, Yi-bo

“…Calypsoinae are a small, largely temperate subtribe that are diverse with respect to trophic strategy (many species have an unusual winter leaf and several are…”
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Phylogenetic relationships in Asarum: Effect of data partitioning and a revised classification by Sinn, Brandon T., Kelly, Lawrence M., Freudenstein, John V.

“…• Premise of the study: Generic boundaries and infrageneric relationships among the charismatic temperate magnoliid Asarum sensu lato (Aristolochiaceae) have…”
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Rangewide analysis of fungal associations in the fully mycoheterotrophic Corallorhiza striata complex (Orchidaceae) reveals extreme specificity on ectomycorrhizal Tomentella (Thelephoraceae) across North America by Barrett, Craig F, Freudenstein, John V, Taylor, D. Lee, Kõljalg, Urmas

“…Fully mycoheterotrophic plants offer a fascinating system for studying phylogenetic associations and dynamics of symbiotic specificity between hosts and…”
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Ancestral Gene Flow and Parallel Organellar Genome Capture Result in Extreme Phylogenomic Discord in a Lineage of Angiosperms by Folk, Ryan A., Mandel, Jennifer R., Freudenstein, John V.

“…While hybridization has recently received a resurgence of attention from systematists and evolutionary biologists, there remains a dearth of case studies on…”
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Biodiversity and the Species Concept—Lineages are not Enough by Freudenstein, John V., Broe, Michael B., Folk, Ryan A., Sinn, Brandon T.

“…The nature and definition of species continue to be matters of debate. Current views of species often focus on their nature as lineages—maximal reproductive…”
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Molecular phylogenetics of Hypoxidaceae – Evidence from plastid DNA data and inferences on morphology and biogeography by Kocyan, Alexander, Snijman, Deirdre A., Forest, Félix, Devey, Dion S., Freudenstein, John V., Wiland-Szymańska, Justyna, Chase, Mark W., Rudall, Paula J.

“…[Display omitted] ► Plastid sequences support three main clades within Hypoxidaceae. ► Long-distance dispersal between southern Africa and Australia of…”
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overview of the phylogenetic relationships within Epidendroideae inferred from multiple DNA regions and recircumscription of Epidendreae and Arethuseae (Orchidaceae) by van den Berg, Cássio, Goldman, Douglas H, Freudenstein, John V, Pridgeon, Alec M, Cameron, Kenneth M, Chase, Mark W

“…Phylogenetic relationships within the epidendroid orchids with emphasis on tribes Epidendreae and Arethuseae were assessed with parsimony and model-based…”
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updated classification of Orchidaceae by Chase, Mark W, Cameron, Kenneth M, Freudenstein, John V, Pridgeon, Alec M, Salazar, Gerado, Berg, Cássio, Schuiteman, André

“…Since the last classification of Orchidaceae in 2003, there has been major progress in the determination of relationships, and we present here a revised…”
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A Phylogeny of the Monocots, as Inferred from rbcL and atpA Sequence Variation, and a Comparison of Methods for Calculating Jackknife and Bootstrap Values by Davis, Jerrold I, Stevenson, Dennis W, Petersen, Gitte, Seberg, Ole, Campbell, Lisa M, Freudenstein, John V, Goldman, Douglas H, Hardy, Christopher R, Michelangeli, Fabian A, Simmons, Mark P, Specht, Chelsea D, Vergara-Silva, Francisco, Gandolfo, Mar

“…A phylogenetic analysis of the monocots was conducted on the basis of nucleotide sequence variation in two genes (atpA, encoded in the mitochondrial genome,…”
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Spurious 99% bootstrap and jackknife support for unsupported clades by Simmons, Mark P., Freudenstein, John V.

“…[Display omitted] ► Use strict-consensus rather than frequency-within-replicates to summarize support. ► Jackknife resampling should be used instead of…”
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An integrative approach to delimiting species in a rare but widespread mycoheterotrophic orchid by BARRETT, CRAIG F., FREUDENSTEIN, JOHN V.

“…In the spirit of recent calls for species delimitation studies to become more pluralistic, incorporating multiple sources of evidence, we adopted an…”
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Lineage and role in integrative taxonomy of a heterotrophic orchid complex by Barrett, Craig F., Santee, Mathilda V., Fama, Nicole M., Freudenstein, John V., Simon, Sandra J., Sinn, Brandon T.

“…Lineage‐based species definitions applying coalescent approaches to species delimitation have become increasingly popular. Yet, the application of these…”
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Molecular identification of mycorrhizal fungi in Neuwiedia veratrifolia (Orchidaceae) by Kristiansen, Kim A., Freudenstein, John V., Rasmussen, Finn N., Rasmussen, Hanne N.

“…We here apply a previously described method for identification of single peloton orchid mycorrhiza to a key orchid group and extend the usefulness in the…”
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1100. Corallorhiza trifida Châtel: Orchidaceae by Fay, Michael F., Raistrick, Reinhild, Freudenstein, John V.

“…Corallorhiza trifida Châtel., illustrated here as Plate 1100, is a widely distributed orchid, occurring in temperate and subarctic regions of Eurasia and North…”
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