Results 11 to 20 of about 32,743 (214)

Limited Mutation-Rate Variation Within the Paramecium aurelia Species Complex [PDF]

open access: yesG3: Genes, Genomes, Genetics, 2018
Mutation is one of the most fundamental evolutionary forces. Studying variation in the mutation rate within and among closely-related species can help reveal mechanisms of genome divergence, but such variation is unstudied in the vast majority of ...
Hongan Long   +2 more
doaj   +3 more sources

Massive colonization of protein-coding exons by selfish genetic elements in Paramecium germline genomes [PDF]

open access: yesPLoS Biology, 2021
Ciliates are unicellular eukaryotes with both a germline genome and a somatic genome in the same cytoplasm. The somatic macronucleus (MAC), responsible for gene expression, is not sexually transmitted but develops from a copy of the germline micronucleus
Diamantis Sellis   +2 more
exaly   +3 more sources

Paramecium Diversity and a New Member of the Paramecium aurelia Species Complex Described from Mexico

open access: yesDiversity, 2020
Paramecium (Ciliophora) is an ideal model organism to study the biogeography of protists. However, many regions of the world, such as Central America, are still neglected in understanding Paramecium diversity.
Alexey Potekhin, Rosaura Mayén-Estrada
doaj   +2 more sources

Genetic Diversity in the Paramecium aurelia Species Complex [PDF]

open access: yesMolecular Biology and Evolution, 2009
Francesco Catania, François Wurmser
exaly   +3 more sources

Species-Specific Duplication of Surface Antigen Genes in Paramecium [PDF]

open access: yesMicroorganisms, 2022
Paramecium is a free-living ciliate that undergoes antigenic variation and still the functions of these variable surface antigen coats in this non-pathogenic ciliate remain elusive.
Marcello Pirritano   +3 more
doaj   +2 more sources

The Paramecium Germline Genome Provides a Niche for Intragenic Parasitic DNA: Evolutionary Dynamics of Internal Eliminated Sequences [PDF]

open access: yesPLoS Genetics, 2012
Insertions of parasitic DNA within coding sequences are usually deleterious and are generally counter-selected during evolution. Thanks to nuclear dimorphism, ciliates provide unique models to study the fate of such insertions.
Olivier Arnaiz   +2 more
exaly   +2 more sources

Measurements of the swimming speeds of motile microorganisms using object tracking and their correlation with water pollution and rheology levels [PDF]

open access: yesScientific Reports, 2021
Self-propelled microscopic organisms are ubiquitous in water. Such organisms’ motility depends on hydrodynamic and physical factors related to the rheology of the surrounding media and biological factors depending on the organisms’ state and well-being ...
Ashaa Preyadharishini Shunmugam   +2 more
doaj   +2 more sources

Complex evolutionary patterns within the tubulin gene family of ciliates, unicellular eukaryotes with diverse microtubular structures [PDF]

open access: yesBMC Biology
Background Tubulins are major components of the eukaryotic cytoskeletons that are crucial in many cellular processes. Ciliated protists comprise one of the oldest eukaryotic lineages possessing cilia over their cell surface and assembling many diverse ...
Hua Su   +6 more
doaj   +2 more sources

Uptake of plastic microbeads by ciliate Paramecium aurelia [PDF]

open access: yes, 2020
Microplastics (MPs) are small fraction of plastics that are less than 5 mm in length. They are bountiful and widespread pollutants in the aquatic environment.
Fyda, Janusz, Nugroho, Failasuf Aulia
core   +2 more sources

Evolutionary Plasticity of Mating-Type Determination Mechanisms in Paramecium aurelia Sibling Species. [PDF]

open access: yesGenome Biol Evol, 2021
The Paramecium aurelia complex, a group of morphologically similar but sexually incompatible sibling species, is a unique example of the evolutionary plasticity of mating-type systems. Each species has two mating types, O (Odd) and E (Even).
Sawka-Gądek N   +10 more
europepmc   +2 more sources

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