Results 11 to 20 of about 149,511 (282)

Genome Size Doubling Arises From the Differential Repetitive DNA Dynamics in the Genus Heloniopsis (Melanthiaceae) [PDF]

open access: yesFrontiers in Genetics, 2021
Plant genomes are highly diverse in size and repetitive DNA composition. In the absence of polyploidy, the dynamics of repetitive elements, which make up the bulk of the genome in many species, are the main drivers underpinning changes in genome size and
Jaume Pellicer   +6 more
doaj   +2 more sources

Comparative cytogenetics among Boana species (Anura, Hylidae): focus on evolutionary variability of repetitive DNA. [PDF]

open access: goldGenet Mol Biol, 2023
Venancio Neto S   +6 more
europepmc   +3 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

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

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

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

Replicating repetitive DNA

open access: yesNature Cell Biology, 2016
The function and regulation of repetitive DNA, the 'dark matter' of the genome, is still only rudimentarily understood. Now a study investigating DNA replication of repetitive centromeric chromosome segments has started to expose a fascinating replication program that involves suppression of ATR signalling, in particular during replication stress.
Tognetti, S, Speck, C
openaire   +4 more sources

Potential of Herbariomics for Studying Repetitive DNA in Angiosperms

open access: yesFrontiers in Ecology and Evolution, 2018
Repetitive DNA has an important role in angiosperm genomes and is relevant to our understanding of genome size variation, polyploidisation and genome dynamics more broadly.
Steven Dodsworth   +12 more
doaj   +1 more source

Repetitive Sequences in Plant Nuclear DNA: Types, Distribution, Evolution and Function

open access: yesGenomics, Proteomics & Bioinformatics, 2014
Repetitive DNA sequences are a major component of eukaryotic genomes and may account for up to 90% of the genome size. They can be divided into minisatellite, microsatellite and satellite sequences.
Shweta Mehrotra, Vinod Goyal
doaj   +1 more source

Chromosomal mapping of two Mariner-like elements in the grasshopper Abracris flavolineata (Orthoptera: Acrididae) reveals enrichment in euchromatin

open access: yesEuropean Journal of Entomology, 2014
The occurrence of transposable elements (TEs) is a ubiquitous characteristic of eukaryotic genomes, and these sequences are highly abundant in some species. Due to their large genomes, grasshoppers (Orthoptera) appear to be potentially good candidates in
Octavio M. PALACIOS-GIMENEZ   +2 more
doaj   +1 more source

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