Results 11 to 20 of about 9,083 (166)

Nucleolar association and transcriptional inhibition through 5S rDNA in mammals. [PDF]

open access: yesPLoS Genetics, 2012
Changes in the spatial positioning of genes within the mammalian nucleus have been associated with transcriptional differences and thus have been hypothesized as a mode of regulation.
Andrew M Fedoriw   +3 more
doaj   +5 more sources

Research Progress on 35S rDNA and 5S rDNA in Sugarcane: Challenges and Prospects. [PDF]

open access: yesInt J Mol Sci
rDNA is abundant in various organisms, typically expressed as conserved tandem repeats. It plays a crucial role in ribosome synthesis, gene transcription, and expression, and it affects the occurrence of diseases in both animals and plants, aging, protein synthesis, genomic stability, and genome evolution across a wide range of organisms.
Li X   +7 more
europepmc   +3 more sources

Genomic architecture of 5S rDNA cluster and its variations within and between species [PDF]

open access: yesBMC Genomics, 2022
Background Ribosomal DNAs (rDNAs) are arranged in purely tandem repeats, preventing them from being reliably assembled onto chromosomes during generation of genome assembly.
Qiutao Ding   +7 more
doaj   +2 more sources

Mosaic Arrangement of the 5S rDNA in the Aquatic Plant Landoltia punctata (Lemnaceae) [PDF]

open access: yesFrontiers in Plant Science, 2021
Duckweeds are a group of monocotyledonous aquatic plants in the Araceae superfamily, represented by 37 species divided into five genera. Duckweeds are the fastest growing flowering plants and are distributed around the globe; moreover, these plants have ...
Guimin Chen   +5 more
doaj   +2 more sources

Ancient Origin of Two 5S rDNA Families Dominating in the Genus Rosa and Their Behavior in the Canina-Type Meiosis [PDF]

open access: yesFrontiers in Plant Science, 2021
The genus Rosa comprises more than 100 woody species characterized by intensive hybridization, introgression, and an overall complex evolutionary history. Besides many diploid species (2n = 2x = 14) polyploids ranging from 3x to 10x are frequently found.
Radka Vozárová   +8 more
doaj   +2 more sources

Divergent landscapes and evolutionary trajectories of 5S rDNA and Cassandra retroelement in Saccharinae [PDF]

open access: yesBMC Plant Biology
Background Repetitive sequences, including tandem repeats and transposable elements (TEs), are prominent components of eukaryotic genomes, each of them possesses distinct characteristics, evolutionary trajectories, and mechanisms of origin and ...
Jiarui Liu   +4 more
doaj   +2 more sources

Contrasting patterns of 5S rDNA repeats in European and Asian ecotypes of greater duckweed, Spirodela polyrhiza (Lemnaceae) [PDF]

open access: yesFrontiers in Plant Science
Ribosomal DNA (rDNA) contains highly conserved, specifically organized sequences encoding ribosomal RNAs (rRNAs) separated by variable non-transcribed intergenic spacers (NTSs) and is abundant in eukaryotic genomes. These characteristics make the rDNA an
Guimin Chen   +4 more
doaj   +2 more sources

Research on 5S rDNA, Mitochondria and Nutritional Components of <i>Cambaroides dauricus</i>. [PDF]

open access: yesBiology (Basel)
The mitochondrial genome and 5S rDNA are powerful tools for exploring and confirming species identity and understanding evolutionary trajectories. In addition, evaluating the nutritional value of Cambaroides dauricus by determining and analyzing the nutritional components of its muscles could provide essential data for relevant artificial breeding and ...
Liu H, Dong X, Wang Y, Luo S.
europepmc   +4 more sources

Molecular organization of the 5S rDNA gene type II in elasmobranchs. [PDF]

open access: yesRNA Biol, 2016
The 5S rDNA gene is a non-coding RNA that can be found in 2 copies (type I and type II) in bony and cartilaginous fish. Previous studies have pointed out that type II gene is a paralog derived from type I. We analyzed the molecular organization of 5S rDNA type II in elasmobranchs. Although the structure of the 5S rDNA is supposed to be highly conserved,
Castro SI   +3 more
europepmc   +4 more sources

A Comparative Study of 5S rDNA Non-Transcribed Spacers in Elaeagnaceae Species. [PDF]

open access: yesPlants (Basel), 2020
5S rDNA is organized as a cluster of tandemly repeated monomers that consist of the conservative 120 bp coding part and non-transcribed spacers (NTSs) with different lengths and sequences among different species. The polymorphism in the 5S rDNA NTSs of closely related species is interesting for phylogenetic and evolutional investigations, as well as ...
Alexandrov OS, Razumova OV, Karlov GI.
europepmc   +5 more sources

Home - About - Disclaimer - Privacy