Results 1 to 10 of about 152,959 (253)

Repetitive DNA profile of the amphibian mitogenome [PDF]

open access: yesBMC Bioinformatics, 2020
Background Repetitive DNA elements such as direct and inverted repeat sequences are present in every genome, playing numerous biological roles. In amphibians, the functions and effects of the repeat sequences have not been extensively explored.
Noel Cabañas   +5 more
doaj   +4 more sources

Silencing repetitive DNA

open access: yeseLife, 2017
Some RNAs in mammalian cells can help to silence the DNA they are transcribed from.
Nahid Iglesias, Danesh Moazed
doaj   +5 more sources

Interstrand crosslinking oligonucleotides elucidate the effect of metal ions on the methylation status of repetitive DNA elements [PDF]

open access: yesFrontiers in Chemistry, 2023
DNA methylation plays an important physiological function in cells, and environmental changes result in fluctuations in DNA methylation levels. Metal ions have become both environmental and health concerns, as they have the potential to disrupt the ...
Shan Liu   +4 more
doaj   +2 more sources

The case for not masking away repetitive DNA [PDF]

open access: yesMobile DNA, 2018
In the course of analyzing whole-genome data, it is common practice to mask or filter out repetitive regions of a genome, such as transposable elements and endogenous retroviruses, in order to focus only on genes and thus simplify the results.
R. Keith Slotkin
doaj   +3 more sources

Cloning and physical localization of male-biased repetitive DNA sequences in Spinacia oleracea (Amaranthaceae) [PDF]

open access: yesComparative Cytogenetics, 2021
Spinach (Spinacia oleracea Linnaeus, 1753) is an ideal material for studying molecular mechanisms of early-stage sex chromosome evolution in dioecious plants. Degenerate oligonucleotide-primed polymerase chain reaction (DOP-PCR) technique facilitates the
Jian Zhou   +8 more
doaj   +4 more sources

Genome size and identification of repetitive DNA sequences using low coverage sequencing in Hancornia speciosa Gomes (Apocynaceae: Gentianales) [PDF]

open access: yesGenetics and Molecular Biology, 2020
Repetitive DNA is an important component of eukaryotic genomes, accounting for more than 90% of the genome size of some species, including mobile elements and satellite DNA sequences.
Vanessa Santos   +2 more
doaj   +1 more source

Regions enriched for DNA repeats in chromosomes of Macrostomum mirumnovem, a species with a recent Whole Genome Duplication

open access: yesВавиловский журнал генетики и селекции, 2020
The free-living flatworm Macrostomum mirumnovem is a neopolyploid species whose genome underwent a recent Whole Genome Duplication (WGD). In the result of chromosome fusions of the ancient haploid chromosome set, large metacentric chromosomes were formed.
K. S. Zadesenets, N. B. Rubtsov
doaj   +1 more source

Challenges and Approaches to Genotyping Repetitive DNA

open access: yesG3: Genes, Genomes, Genetics, 2020
Individuals within a species can exhibit vast variation in copy number of repetitive DNA elements. This variation may contribute to complex traits such as lifespan and disease, yet it is only infrequently considered in genotype-phenotype associations ...
Elizabeth A. Morton   +9 more
doaj   +1 more source

Losing DNA methylation at repetitive elements and breaking bad

open access: yesEpigenetics & Chromatin, 2021
Background DNA methylation is an epigenetic chromatin mark that allows heterochromatin formation and gene silencing. It has a fundamental role in preserving genome stability (including chromosome stability) by controlling both gene expression and ...
Xena Giada Pappalardo, Viviana Barra
doaj   +1 more source

Repetitive DNA Sequences [PDF]

open access: yes, 2020
Repetitive DNA is ubiquitous in eukaryotic genomes, and, in many species, comprises the bulk of the genome. Repeats include transposable elements that can self-mobilize and disperse around the genome, and tandemly-repeated satellite DNAs that increase in copy number due to replication slippage and unequal crossing over.
Dion-Côté, Anne-Marie   +3 more
openaire   +3 more sources

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