Results 1 to 10 of about 107,983 (304)

18S rRNA gene metabarcoding for investigation of gastrointestinal parasite diversity in great cormorants [PDF]

open access: yesScientific Reports
The great cormorant (Phalacrocorax carbo) is a migratory, fish-eating bird that may act as a carrier for various pathogens, raising potential ecological and public health concerns.
Subin Lee   +7 more
doaj   +4 more sources

Evaluation of coccidia DNA in irrigation pond water and wastewater sludge associated with Cyclospora cayetanensis 18S rRNA gene qPCR detections [PDF]

open access: yesMicrobiology Spectrum
The coccidian parasite Cyclospora cayetanensis is the causative agent for foodborne outbreaks of cyclosporiasis disease and multiple annual fresh produce recalls.
Jessica Hofstetter   +5 more
doaj   +2 more sources

Taxonomic resolutions based on 18S rRNA genes: a case study of subclass copepoda. [PDF]

open access: yesPLoS ONE, 2015
Biodiversity studies are commonly conducted using 18S rRNA genes. In this study, we compared the inter-species divergence of variable regions (V1-9) within the copepod 18S rRNA gene, and tested their taxonomic resolutions at different taxonomic levels ...
Shu Wu, Jie Xiong, Yuhe Yu
doaj   +4 more sources

DNA Barcoding Using 18S rRNA Gene Fragments for Identification of Tick-Borne Protists in Ticks in the Republic of Korea [PDF]

open access: yesPathogens
The objective of this study was to evaluate the diversity and prevalence of tick-borne protists in the Republic of Korea via DNA barcoding using 18S rRNA gene fragments and PCR.
Badriah Alkathiri   +14 more
doaj   +2 more sources

ITS2 and 18S rRNA gene sequence-structure phylogeny of the Haptophyta (Haptista). [PDF]

open access: yesPLoS ONE
The phylogeny of haptophytes, a diverse and ecologically significant group of microalgae, remains incompletely resolved despite extensive molecular studies.
Louisa Ridder   +2 more
doaj   +2 more sources

Identification of endogenous reference genes for RT-qPCR analysis in breast cancer and matched adjacent tissues [PDF]

open access: yesFrontiers in Oncology
BackgroundReal-time quantitative PCR (RT-qPCR), essential for gene expression and biomarker studies, requires stable endogenous reference genes (RGs) for normalization. This study aimed to identify consistently expressed RGs in breast cancer and adjacent
Yue Meng   +8 more
doaj   +2 more sources

Nitrate Consumers in Arctic Marine Eukaryotic Communities: Comparative Diversities of 18S rRNA, 18S rRNA Genes, and Nitrate Reductase Genes [PDF]

open access: yesApplied and Environmental Microbiology, 2019
To better understand the diversity of primary producers in the Arctic Ocean, we targeted a nitrogen cycle gene, NR, which is required for phytoplankton to assimilate nitrate into organic forms of nitrogen macromolecules. We compared this to the more detailed taxonomy from ice-influenced stations using a general taxonomic gene (18S rRNA).
André M, Comeau   +4 more
openaire   +2 more sources

Genetic Diversity of Babesia canis Strains in Dogs in Lithuania

open access: yesMicroorganisms, 2022
Canine babesiosis is an emerging and rapidly expanding tick-borne disease in central and northeast Europe. In the last two decades, the endemic area of Babesia canis has expanded from central Europe to the Baltic region.
Jana Radzijevskaja   +6 more
doaj   +1 more source

Origin of the Mesozoa inferred from 18S rRNA gene sequences [PDF]

open access: yesMolecular Biology and Evolution, 1996
The phylum Mesozoa comprises small, simply organized wormlike parasites of marine invertebrates and is composed of two classes, the Rhombozoa and the Orthonectida. The origin of Mesozoa is uncertain; they are classically considered either as degenerate turbellarians or as primitive multicellular animals related to ciliated protists.
Pawlowski, Jan Wojciech   +4 more
openaire   +2 more sources

Revealing the composition of the eukaryotic microbiome of oyster spat by CRISPR-Cas Selective Amplicon Sequencing (CCSAS)

open access: yesMicrobiome, 2021
Background The microbiome affects the health of plants and animals, including humans, and has many biological, ecological, and evolutionary consequences.
Kevin Xu Zhong   +4 more
doaj   +1 more source

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