Results 21 to 30 of about 526,173 (258)

Organization and expression analysis of 5S and 45S ribosomal DNA clusters in autotetraploid Carassius auratus

open access: yesBMC Ecology and Evolution, 2021
Background Autotetraploid Carassius auratus (4n = 200, RRRR) (abbreviated as 4nRR) is derived from whole genome duplication of Carassius auratus red var. (2n = 100, RR) (abbreviated as RCC).
Chun Zhao   +10 more
doaj   +1 more source

Mild cognitive impairment is associated with low copy number of ribosomal genes in the genomes of elderly people

open access: yesFrontiers in Genetics, 2022
Introduction: Mild cognitive impairments (MCI) accompanying aging are associated with oxidative stress. The ability of cells to respond to stress is determined by the protein synthesis level, which depends on the ribosomes number.
Natalia N. Veiko   +11 more
doaj   +1 more source

The replicative lifespan-extending deletion of SGF73 results in altered ribosomal gene expression in yeast. [PDF]

open access: yes, 2017
Sgf73, a core component of SAGA, is the yeast orthologue of ataxin-7, which undergoes CAG-polyglutamine repeat expansion leading to the human neurodegenerative disease spinocerebellar ataxia type 7 (SCA7).
Garza, Renee M   +6 more
core   +2 more sources

Phylogenetic analysis of Polystigma and its relationship to Phyllachorales

open access: yesPhytopathologia Mediterranea, 2015
Polystigma amygdalinum, which causes red leaf blotch of almond, is one of the few fungal plant pathogens to remain a taxonomic enigma, primarily because it has resisted cultivation and causes almond leaf blotch only in restricted regions of the world. To
Azadeh HABIBI   +2 more
doaj   +1 more source

Ribosomal small subunit sequence diversity of Scutellospora within single spores and roots of bluebell from a woodland community. [PDF]

open access: yes, 1999
Roots of bluebell (Hyacinthoides nonscripta) were sampled from a woodland in Yorkshire,UK and spores of an arbuscular mycorrhizal fungus Scutellospora sp., were obtained from the surrounding soil.
Clapp, J.P., Fitter, A.H., Young, J.P.W.
core   +1 more source

Unveiling cryptic species diversity of flowering plants: successful biological species identification of Asian Mitella using nuclear ribosomal DNA sequences

open access: yesBMC Evolutionary Biology, 2009
Background Although DNA sequence analysis is becoming a powerful tool for identifying species, it is not easy to assess whether the observed genetic disparity corresponds to reproductive isolation.
Okuyama Yudai, Kato Makoto
doaj   +1 more source

Taxonomy of anaerobic digestion microbiome reveals biases associated with the applied high throughput sequencing strategies [PDF]

open access: yes, 2018
In the past few years, many studies investigated the anaerobic digestion microbiome by means of 16S rRNA amplicon sequencing. Results obtained from these studies were compared to each other without taking into consideration the followed procedure for ...
Angelidaki, Irini   +4 more
core   +3 more sources

Drug hypersensitivity caused by alteration of the MHC-presented self-peptide repertoire [PDF]

open access: yes, 2012
Idiosyncratic adverse drug reactions are unpredictable, dose independent and potentially life threatening; this makes them a major factor contributing to the cost and uncertainty of drug development. Clinical data suggest that many such reactions involve
A. Lucas   +47 more
core   +4 more sources

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   +2 more sources

A New Isolate of the Genus Malassezia Based on the Sequence Analysis of 26S and ITS1 in Ribosomal DNA [PDF]

open access: yesCell Journal, 2009
Malassezia species considered to be the etiological agents of pityriasis versicolor andMalassezia follicolitis in humans. Recently, on the basis of molecular data, four new specieswere added to the genus.
Hossein Mirhendi   +2 more
doaj  

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