Results 11 to 20 of about 152,959 (253)

Substantial structural variation and repetitive DNA content contribute to intraspecific plastid genome evolution [PDF]

open access: yesBMC Genomics
Background Plastids have highly conserved genomes in most land plants. However, in several families, plastid genomes exhibit high rates of nucleotide substitution and structural rearrangements among species.
Alfredo López-Caamal   +3 more
doaj   +2 more sources

Impact of Repetitive DNA Elements on Snake Genome Biology and Evolution [PDF]

open access: yesCells, 2021
The distinctive biology and unique evolutionary features of snakes make them fascinating model systems to elucidate how genomes evolve and how variation at the genomic level is interlinked with phenotypic-level evolution.
Syed Farhan Ahmad   +3 more
doaj   +2 more sources

The mechanism of replication stalling and recovery within repetitive DNA [PDF]

open access: yesNature Communications, 2022
DNA replication of repetitive sequences was recreated in a test tube using purified components. DNA alone was sufficient to induce stalling. Both stalling and recovery were dictated by the capacity of DNA to fold into unusual secondary structures.
Corella S. Casas-Delucchi   +3 more
doaj   +2 more sources

Tigerfish designs oligonucleotide-based in situ hybridization probes targeting intervals of highly repetitive DNA at the scale of genomes [PDF]

open access: yesNature Communications
Fluorescent in situ hybridization (FISH) is a powerful method for the targeted visualization of nucleic acids in their native contexts. Recent technological advances have leveraged computationally designed oligonucleotide (oligo) probes to interrogate ...
Robin Aguilar   +5 more
doaj   +2 more sources

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

The Pontastacus leptodactylus (Astacidae) Repeatome Provides Insight Into Genome Evolution and Reveals Remarkable Diversity of Satellite DNA

open access: yesFrontiers in Genetics, 2021
Pontastacus leptodactylus is a native European crayfish species found in both freshwater and brackish environments. It has commercial importance for fisheries and aquaculture industries. Up till now, most studies concerning P.
Ljudevit Luka Boštjančić   +10 more
doaj   +1 more source

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

Perm-seq: Mapping Protein-DNA Interactions in Segmental Duplication and Highly Repetitive Regions of Genomes with Prior-Enhanced Read Mapping. [PDF]

open access: yesPLoS Computational Biology, 2015
Segmental duplications and other highly repetitive regions of genomes contribute significantly to cells' regulatory programs. Advancements in next generation sequencing enabled genome-wide profiling of protein-DNA interactions by chromatin ...
Xin Zeng   +6 more
doaj   +1 more source

Association of Chromosomal RNA with Repetitive DNA [PDF]

open access: yesProceedings of the National Academy of Sciences, 1971
Chromosomal RNA, which is a component of the chromosomes of higher organisms, and whose participation is required for sequence-specific interaction of chromosomal proteins with chromosomal DNA, occurs in chromosomes bound to DNA. We have found that the DNA sequences to which chromosomal RNA binds are repetitive ones.
Sivolap, Yuriy M., Bonner, James
openaire   +3 more sources

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

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