Results 11 to 20 of about 14,854 (216)

Ciliate SSU-rDNA reference alignments and trees for phylogenetic placements of metabarcoding data [PDF]

open access: yesMetabarcoding and Metagenomics, 2021
Although ciliates are one of the most dominant microbial eukaryotic groups in many environments, there is a lack of updated global ciliate alignments and reference trees that can be used for phylogenetic placement methods to analyze environmental ...
Ľubomír Rajter, Micah Dunthorn
doaj   +4 more sources

Evolution of a Planktonic Foraminifer during Environmental Changes in the Tropical Oceans. [PDF]

open access: yesPLoS ONE, 2016
Ecological adaptation to environmental changes is a strong driver of evolution, enabling speciation of pelagic plankton in the open ocean without the presence of effective physical barriers to gene flow.
Yurika Ujiié, Yoshiyuki Ishitani
doaj   +1 more source

Genetic diversity of Entamoeba: Novel ribosomal lineages from cockroaches. [PDF]

open access: yesPLoS ONE, 2017
Our current taxonomic perspective on Entamoeba is largely based on small-subunit ribosomal RNA genes (SSU rDNA) from Entamoeba species identified in vertebrate hosts with minor exceptions such as E. moshkovskii from sewage water and E. marina from marine
Tetsuro Kawano   +5 more
doaj   +1 more source

Marine nematode taxonomy in the DNA age: the present and future of molecular tools to access their biodiversity [PDF]

open access: yes, 2010
Molecular taxonomy is one of the most promising yet challenging fields of biology. Molecular markers such as nuclear and mitochondrial genes are being used in a variety of studies surveying marine nematode taxa.
da Silva, Maria Cristina   +7 more
core   +3 more sources

Using the Multiple Analysis Approach to Reconstruct Phylogenetic Relationships among Planktonic Foraminifera from Highly Divergent and Length-polymorphic SSU rDNA Sequences

open access: yesBioinformatics and Biology Insights, 2009
The high sequence divergence within the small subunit ribosomal RNA gene (SSU rDNA) of foraminifera makes it difficult to establish the homology of individual nucleotides across taxa.
Ralf Aurahs   +6 more
doaj   +2 more sources

Historical Review of Studies on Cyrtophorian Ciliates (Ciliophora, Cyrtophoria) from China

open access: yesMicroorganisms, 2022
The subclass Cyrtophoria are a group of morphologically specialized ciliates which mainly inhabit soil, freshwater, brackish water, and marine environments.
Zhishuai Qu   +5 more
doaj   +1 more source

Morphological characterization and genetic diversity of a new microsporidium, Neoflabelliforma dubium n. sp. from the adipose tissue of Diaphanosoma dubium (Crustacea: Sididae)

open access: yesFrontiers in Cellular and Infection Microbiology, 2023
We reported a new microsporidium Neoflabelliforma dubium n. sp. from the adipose tissue of Diaphanosoma dubium in China. The infected daphnids generally appeared opaque due to the presence of numerous spore aggregates located in the adipose tissue.
Meiqi Weng   +9 more
doaj   +1 more source

The limits of nuclear-encoded SSU rDNA for resolving the diatom phylogeny [PDF]

open access: yesEuropean Journal of Phycology, 2009
A recent reclassification of diatoms based on phylogenies recovered using the nuclear-encoded SSU rRNA gene contains three major classes, Coscinodiscophyceae, Mediophyceae and the Bacillariophyceae (the CMB hypothesis). We evaluated this with a sequence alignment of 1336 protist and heterokont algae SSU rRNAs, which includes 673 diatoms. Sequences were
Edward C, Theriot   +3 more
openaire   +2 more sources

First record of gregarine protists (Apicomplexa: Sporozoa) in Asian fungus-growing termite Macrotermes barneyi (Blattaria: Termitidae)

open access: yesScientific Reports, 2021
Macrotermes barneyi, widely distributed in southern China, is the major fungus-growing termite in the subfamily Macrotermitinae. It has no flagellated protists in the guts.
Shuo Zhang   +4 more
doaj   +1 more source

Increased sampling reveals novel lineages of Entamoeba: consequences of genetic diversity and host specificity for taxonomy and molecular detection. [PDF]

open access: yes, 2011
To expand the representation for phylogenetic analysis, ten additional complete Entamoeba small-subunit rRNA gene sequences were obtained from humans, non-human primates, cattle and a tortoise. For some novel sequences no corresponding morphological data
Alfellani, Mohammed   +7 more
core   +1 more source

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