Search Results - "GB Simpson, Alastair"

Revision of the phylogeny of Placididea (Stramenopiles): Molecular and morphological diversity of novel placidid protists from extreme aquatic environments by Rybarski, Alexandra E., Nitsche, Frank, Soo Park, Jong, Filz, Paulina, Schmidt, Patricia, Kondo, Ryuji, GB Simpson, Alastair, Arndt, Hartmut

“…Recent studies suggested that the diversity of microbial eukaryotes in hypersaline environments is widely underestimated. Placidids are a group of…”
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Molecular phylogeny of diplomonads and enteromonads based on SSU rRNA, alpha-tubulin and HSP90 genes: implications for the evolutionary history of the double karyomastigont of diplomonads by Kolisko, Martin, Cepicka, Ivan, Hampl, Vladimir, Leigh, Jessica, Roger, Andrew J, Kulda, Jaroslav, Simpson, Alastair G B, Flegr, Jaroslav

“…Fornicata is a relatively recently established group of protists that includes the diplokaryotic diplomonads (which have two similar nuclei per cell), and the…”
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How many species are there on Earth and in the ocean? by Mora, Camilo, Tittensor, Derek P, Adl, Sina, Simpson, Alastair G B, Worm, Boris

“…The diversity of life is one of the most striking aspects of our planet; hence knowing how many species inhabit Earth is among the most fundamental questions…”
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The Revised Classification of Eukaryotes by Adl, Sina M., Simpson, Alastair G. B., Lane, Christopher E., Lukeš, Julius, Bass, David, Bowser, Samuel S., Brown, Matthew W., Burki, Fabien, Dunthorn, Micah, Hampl, Vladimir, Heiss, Aaron, Hoppenrath, Mona, Lara, Enrique, le Gall, Line, Lynn, Denis H., McManus, Hilary, Mitchell, Edward A. D., Mozley-Stanridge, Sharon E., Parfrey, Laura W., Pawlowski, Jan, Rueckert, Sonja, Shadwick, Laura, Schoch, Conrad L., Smirnov, Alexey, Spiegel, Frederick W.

“…This revision of the classification of eukaryotes, which updates that of Adl et al. [J. Eukaryot. Microbiol. 52 (2005) 399], retains an emphasis on the…”
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Phylogenomic Analyses Support the Monophyly of Excavata and Resolve Relationships among Eukaryotic "Supergroups" by Hampl, Vladimir, Hug, Laura, Leigh, Jessica W., Dacks, Joel B., Lang, B. Franz, Simpson, Alastair G. B., Roger, Andrew J., Palmer, Jeffrey D.

“…Nearly all of eukaryotic diversity has been classified into 6 suprakingdom-level groups (supergroups) based on molecular and morphological/cell-biological…”
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Phylogenomics demonstrates that breviate flagellates are related to opisthokonts and apusomonads by Brown, Matthew W., Sharpe, Susan C., Silberman, Jeffrey D., Heiss, Aaron A., Lang, B. Franz, Simpson, Alastair G. B., Roger, Andrew J.

“…Most eukaryotic lineages belong to one of a few major groups. However, several protistan lineages have not yet been robustly placed in any of these groups…”
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Two New Marine Species of Placopus (Vampyrellida, Rhizaria) That Perforate the Theca of Tetraselmis (Chlorodendrales, Viridiplantae) by More, Kira, Simpson, Alastair G.B., Hess, Sebastian

“…Vampyrellids (Vampyrellida, Rhizaria) are a major group of predatory amoebae known primarily from freshwater and soil. Environmental sequence data indicate…”
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Diversity of Heterotrophic Protists from Extremely Hypersaline Habitats by Park, Jong Soo, Simpson, Alastair G.B.

“…Heterotrophic protists (protozoa) are a diverse but understudied component of the biota of extremely hypersaline environments, with few data on molecular…”
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New Higher Level Classification of Eukaryotes with Emphasis on the Taxonomy of Protists by Adl, Sina M, Simpson, Alastair G.B, Farmer, Mark A, Andersen, Robert A, Anderson, O. Roger, Barta, John R, Bowser, Samuel S, Brugerolle, Guy, Fensome, Robert A, Fredericq, Suzanne, James, Timothy Y, Karpov, Sergei, Kugrens, Paul, Krug, John, Lane, Christopher E, Lewis, Louise A, Lodge, Jean, Lynn, Denis H, Mann, David G, McCourt, Richard M, Mendoza, Leonel, Moestrup, Ojvind, Mozley-Strandridge, Sharon E, Nerad, Thomas A, Shearer, Carol A, Smirnov, Alexey V, Spiegel, Frederick W, Taylor, Max F.J.R

“… This revision of the classification of unicellular eukaryotes updates that of Levine et al. (1980) for the protozoa and expands it to include other protists…”
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Description of Imasa heleensis, gen. nov., sp. nov. (Imasidae, fam. nov.), a Deep‐Branching Marine Malawimonad and Possible Key Taxon in Understanding Early Eukaryotic Evolution by Heiss, Aaron A., Warring, Sally D., Lukacs, Kaleigh, Favate, John, Yang, Ashley, Gyaltshen, Yangtsho, Filardi, Christopher, Simpson, Alastair G.B., Kim, Eunsoo

“…Malawimonadida is a deep‐level (arguably “kingdom‐scale”) lineage of eukaryotes whose phylogenetic affinities are uncertain but of great evolutionary interest,…”
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Characterization of a Deep‐Branching Heterolobosean, Pharyngomonas turkanaensis n. sp., Isolated from a Non‐Hypersaline Habitat, and Ultrastructural Comparison of Cysts and Amoebae Among Pharyngomonas Strains by Park, Jong Soo, Simpson, Alastair G.B

“…An unusual heterolobosean amoeba, isolate LO, was isolated recently from a sample with a salinity of ~4‰, from Lake Turkana in East Africa. 18S rDNA…”
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Comprehensive multigene phylogenies of excavate protists reveal the evolutionary positions of "primitive" eukaryotes by Simpson, Alastair G B, Inagaki, Yuji, Roger, Andrew J

“…Many of the protists thought to represent the deepest branches on the eukaryotic tree are assigned to a loose assemblage called the "excavates." This includes…”
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Combining Molecular Data with Classical Morphology for Uncultured Phagotrophic Euglenids (Excavata): A Single‐Cell Approach by Lax, Gordon, Simpson, Alastair G. B

“…Phagotrophic euglenids are one of the most diverse and important forms of heterotrophic flagellates in sediment systems, and are key to understanding the…”
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Ultrastructure and Molecular Phylogenetic Position of Neometanema parovale sp. nov. (Neometanema gen. nov.), a Marine Phagotrophic Euglenid with Skidding Motility by Lee, Won Je, Simpson, Alastair G.B.

“…Heteronema is a commonly encountered genus of phagotrophic euglenids that contains very different morphotypes, including elongate gliding species and ovoid…”
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Characterization of halotolerant Bicosoecida and Placididea (Stramenopila) that are distinct from marine forms, and the phylogenetic pattern of salinity preference in heterotrophic stramenopiles by Park, Jong Soo, Simpson, Alastair G.B

“…Recent culture-based studies demonstrate the distinctiveness of the microbial eukaryote biota of very hypersaline environments. In contrast, microscopy-based…”
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Evolutionary relationships of apusomonads inferred from taxon-rich analyses of 6 nuclear encoded genes by Kim, Eunsoo, Simpson, Alastair G B, Graham, Linda E

“…The phylogenetic relationships of the biflagellate protist group Apusomonadidae have been unclear despite the availability of some molecular data. We analyzed…”
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Low temperature tolerance of a sea urchin pathogen: Implications for benthic community dynamics in a warming ocean by Buchwald, Robyn T., Feehan, Colette J., Scheibling, Robert E., Simpson, Alastair G.B.

“…Disease outbreaks in the sea urchin Strongylocentrotus droebachiensis on the Atlantic coast of Nova Scotia have increased in frequency over the last 35years,…”
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Morphological and Molecular Characterisation of Notosolenus urceolatus Larsen and Patterson 1990, a Member of an Understudied Deep‐branching Euglenid Group (Petalomonads) by Lee, Won Je, Simpson, Alastair G. B

“…Petalomonads are particularly important for understanding the early evolution of euglenids, but are arguably the least studied major group within this taxon…”
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Marine Isolates of Trimastix marina Form a Plesiomorphic Deep-branching Lineage within Preaxostyla, Separate from Other Known Trimastigids (Paratrimastix n. gen.) by Zhang, Qianqian, Táborský, Petr, Silberman, Jeffrey D., Pánek, Tomáš, Čepička, Ivan, Simpson, Alastair G.B.

“…Trimastigids are free-living, anaerobic protists that are closely related to the symbiotic oxymonads, forming together the taxon Preaxostyla (Excavata:…”
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Creneis carolina gen. et sp. nov. (Heterolobosea), a Novel Marine Anaerobic Protist with Strikingly Derived Morphology and Life Cycle by Pánek, Tomáš, Simpson, Alastair G.B., Hampl, Vladimír, Čepička, Ivan

“…We report the light-microscopic morphology and ultrastructure of a novel free-living, heterotrophic protist, Creneis carolina gen. et sp. nov. isolated from…”
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