Evolution of Rhizaria: new insights from phylogenomic analysis of uncultivated protists [PDF]
BMC Evolutionary Biology, 2010 Background Recent phylogenomic analyses have revolutionized our view of eukaryote evolution by revealing unexpected relationships between and within the eukaryotic supergroups.
Bulman Simon +7 more
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Monophyly of Rhizaria and Multigene Phylogeny of Unicellular Bikonts [PDF]
Molecular Biology and Evolution, 2006 Reconstructing a global phylogeny of eukaryotes is an ongoing challenge of molecular phylogenetics. The availability of genomic data from a broad range of eukaryotic phyla helped in resolving the eukaryotic tree into a topology with a rather small number of large assemblages, but the relationships between these "supergroups" are yet to be confirmed ...
Burki F, Pawlowski J
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Role of small Rhizaria and diatoms in the pelagic silica production of the Southern Ocean [PDF]
Limnology and Oceanography, 2021 We examined biogenic silica production and elementary composition (biogenic Si, particulate organic carbon and particulate organic nitrogen) of Rhizaria and diatoms in the upper 200 m along a transect in the Southwest Pacific sector of the Southern Ocean during austral summer (January–February 2019).
Natalia Llopis Monferrer +11 more
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Phylogenomics of the eukaryotic supergroup Rhizaria [PDF]
, 1981 Rhizaria is a supergroup of eukaryotes established solely on molecular characters. It comprises several groups of uncultivable free-living organisms such as foraminiferans, radiolarians, gromiids, cercozoans as well as the haplosporidians (animal parasites) and plasmodiophorids (plant parasites).
Sierra Miranda, Roberto Mario
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Aggregative Multicellularity Evolved Independently in the Eukaryotic Supergroup Rhizaria [PDF]
Current Biology, 2012 Multicellular forms of life have evolved many times, independently giving rise to a diversity of organisms such as animals, plants, and fungi that together comprise the visible biosphere. Yet multicellular life is far more widespread among eukaryotes than just these three lineages.
Brown, Matthew W. +3 more
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Composite calcite and opal test in Foraminifera (Rhizaria) [PDF]
BiogeosciencesForaminifera are unicellular eukaryotes known to have a shell, called a test, generally made of secreted calcite (CaCO3). For the first time, we report a foraminifera with a composite calcite–opal test in the cosmopolitan and well-studied benthic species
J. Richirt +9 more
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Enhanced Scanning Electron Microscopy Images Using Muscovite Mica, an Example with Rhizaria [PDF]
Microscopy Research and Technique, 2021 Abstract Muscovite Mica sheets were used as a support to capture scanning electron microscopy pictures. The physical properties of the cleaved Muscovite Mica provide a clean background, which greatly reduces the post-processing of images, thereby enhancing them and resulting in impressive images.
Natalia Llopis Monferrer +2 more
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Eukaryote-to-eukaryote gene transfer pervades the genome evolution of Rhizaria [PDF]
, 2023 Abstract Lateral gene transfer (LGT) has contributed to the genetic makeup of various eukaryotic lineages, yet its prevalence and long-term significance remain poorly understood, particularly for transfers between eukaryotes. Here, we investigate LGT across 29 species of Rhizaria, an ancient and ecologically diverse clade of ...
Jolien J.E. van Hooff, Laura Eme
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Micro- and nanometric characterization of the celestite skeleton of acantharian species (Radiolaria, Rhizaria) [PDF]
Scientific Reports, 2022 We clarified the specific micrometric arrangement and nanometric structure of the radiolarian crystalline spines that are not a simple single crystal. A body of the celestite (SrSO4) skeleton of acantharian Acanthometra cf.
Rina Fujimaki +7 more
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Phylogenomics of the Intracellular Parasite Mikrocytos mackini Reveals Evidence for a Mitosome in Rhizaria [PDF]
Current Biology, 2013 Mikrocytos mackini is an intracellular protistan parasite of oysters whose position in the phylogenetic tree of eukaryotes has been a mystery for many years [1,2]. M. mackini is difficult to isolate, has not been cultured, and has no defining morphological feature.
Burki Fabien +6 more
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