Results 51 to 60 of about 9,083 (166)

Molecular dissection of the rDNA array and of the 5S rDNA gene in Meloidogyne artiellia: phylogenetic and diagnostic implications

Molecular and Cellular Probes, 2004
The sequence of a 13.423 nucleotide genomic fragment has been determined for the plant parasitic nematode Meloidogyne artiellia. It contains an entire rDNA cluster, the bordering intergenic regions and portions of the flanking coding regions. The sequence analysis of the rDNA repeats suggests homogeneity in M.
Veronico P, De Luca F, De Giorgi C
openaire   +4 more sources

Uncovering a new Scrippsiella species from the Black Sea: Scrippsiella phycobiana sp. nov. (Thoracosphaerales, Dinophyceae)

Phycological Research, EarlyView.
SUMMARY The dinophyte genus Scrippsiella is a common and ecologically important component of coastal microplankton communities, yet its species diversity in the Black Sea remains insufficiently resolved due to morphological similarity among taxa and the scarcity of integrative taxonomic studies. Here, we describe Scrippsiella phycobiana sp. nov., a new
Urban Tillmann, Nina Dzhembekova
wiley   +1 more source

Modification of the Transcription Factor FOXL2 at Serines 101 and 107 Disables DNA Binding, Leads to Nucleolar Relocalization, and Rewires Granulosa‐Cell Programs

The FASEB Journal, Volume 40, Issue 15, 15 August 2026.
PKC‐mediated phosphorylation of FOXL2 weakens DNA binding, alters subnuclear localization and protein interactions, and reshapes FOXL2‐dependent transcriptional programs in granulosa cells, supporting a reversible mechanism that modulates FOXL2 activity through phosphorylation of its DNA‐binding domain. ABSTRACT FOXL2 is a forkhead transcription factor
Ludovic Mousseron, Despoina Chousianiti, Francis Poulat, Bérangère Legois, Reiner A. Veitia, Anne‐Laure Todeschini   +5 more
wiley   +1 more source

Conservation and loss of ribosomal RNA gene sites in diploid and polyploid Fragaria (Rosaceae)

BMC Plant Biology, 2011
Background The genus Fragaria comprises species at ploidy levels ranging from diploid (2n = 2x = 14) to decaploid (2n = 10x = 70). Fluorescence in situ hybridization with 5S and 25S rDNA probes was performed to gather cytogenetic information that ...
Liu Bo, Davis Thomas M
doaj   +1 more source

A Pol V-mediated silencing, independent of RNA-directed DNA methylation, applies to 5S rDNA. [PDF]

PLoS Genetics, 2009
The plant-specific RNA polymerases Pol IV and Pol V are essential to RNA-directed DNA methylation (RdDM), which also requires activities from RDR2 (RNA-Dependent RNA Polymerase 2), DCL3 (Dicer-Like 3), AGO4 (Argonaute), and DRM2 (Domains Rearranged ...
Julien Douet, Sylvie Tutois, Sylvette Tourmente   +2 more
doaj   +1 more source

Nuclear pore links Fob1‐dependent rDNA damage relocation to lifespan control

FEBS Open Bio, Volume 16, Issue 7, Page 1305-1313, July 2026.
Damaged rDNA accumulates at a specific perinuclear interface that couples nucleolar escape with nuclear envelope association. Nuclear pores at this site help inhibit Fob1‐induced rDNA instability. This spatial organization of damage handling supports a functional link between nuclear architecture, rDNA stability, and replicative lifespan in yeast.
Yamato Okada, Mina Iwaki, Kyosuke Hagiri, Rei Izumi, Masahiko Harata, Chihiro Horigome   +5 more
wiley   +1 more source

rDNAmine: A New Tool for the Analysis of Long Repetitive Sequences

Yeast, Volume 43, Issue 4, Page 170-183, July 2026.
This work introduces a novel approach for analysing long repetitive genomic sequences, combining a method to isolate large DNA molecules from individual chromosomes. We also describe the bioinformatics tool rDNAmine, which enables the isolation of long‐repeat sequences from reads obtained using the Oxford Nanopore method, as well as their preliminary ...
Agnieszka Czarnocka‐Cieciura, Natalia Gumińska   +1 more
wiley   +1 more source

The 5S rDNA family evolves through concerted and birth-and-death evolution in fish genomes: an example from freshwater stingrays

BMC Evolutionary Biology, 2011
Background Ribosomal 5S genes are well known for the critical role they play in ribosome folding and functionality. These genes are thought to evolve in a concerted fashion, with high rates of homogenization of gene copies.
Araki Carlos S, Yoshimura Tatiana S, Pinhal Danillo, Martins Cesar   +3 more
doaj   +1 more source

Dynamic distribution patterns of ribosomal DNA and chromosomal evolution in Paphiopedilum, a lady's slipper orchid

BMC Plant Biology, 2011
Background Paphiopedilum is a horticulturally and ecologically important genus of ca. 80 species of lady's slipper orchids native to Southeast Asia.
Albert Victor A, Lan Tianying
doaj   +1 more source

Probiotics‐derived postbiotics improve host metabolic syndrome by activating the adipocyte thermogenic signaling pathway in high‐fat diet‐fed mice

iMetaOmics, Volume 3, Issue 2, June 2026.
This schematic illustrates how probiotics‐derived postbiotics (PLBK®1–5) combat high‐fat diet‐induced obesity. Postbiotics remodel gut microbiota, boosting beneficial metabolites. These metabolites activate adipocyte thermogenesis (Ucp1/AMPK pathway), resulting in reduced body weight, improved insulin sensitivity, and alleviated hepatic steatosis in ...
Ye Tian, Liujing Huang, Yifan Liu, Xudong Mai, Yanbo Cheng, Bingdong Liu, Yixin Chen, Liwei Xie   +7 more
wiley   +1 more source