Results 21 to 30 of about 183,083 (248)

Comparative cytogenetics of the ground frogs Eupsophus emiliopugini Formas, 1989 and E. vertebralis Grandison, 1961 (Alsodidae) with comments on their inter- and intraspecific chromosome differentiation [PDF]

Comparative Cytogenetics, 2020
South American frogs of the genus Eupsophus Fitzinger, 1843 comprise 10 species. Two of them, Eupsophus vertebralis Grandison, 1961 and E. emiliopugini Formas, 1989 belong to the Eupsophus vertebralis group, exhibiting 2n = 28.
Camila A. Quercia, Elkin Y. Suárez-Villota, Fausto Foresti, José J. Nuñez   +3 more
doaj   +3 more sources

Chromosomal location of rDNA clusters and TTAGG telomeric repeats in eight species of the spittlebug genus Philaenus (Hemiptera: Auchenorrhyncha: Aphrophoridae)

European Journal of Entomology, 2013
A cytogenetic investigation was performed in eight species of the spittlebug genus Philaenus using silver-NOR (AgNOR)-banding and fluorescence in situ hybridization (FISH) with 18S rDNA and (TTAGG)n telomeric probes. This is the first application of FISH
Anna MARYAŃSKA-NADACHOWSKA, Valentina G. KUZNETSOVA, Tatyana V. KARAMYSHEVA   +2 more
doaj   +1 more source

Clinical significance of Ag-NORs-staining in multiple myeloma.

The Journal of the Japanese Society of Clinical Cytology, 1994
本研究では多発性骨髄腫multiple myeloma: MMの骨髄標本におけるAg-NORs染色を試みた.MMのAg-NORs染色で得られたドットは, 数・大きさ・染色パターンに多様性があった.われわれは, ドットの染色パターンにより独自のscoringsystemを考案し, 臨床の場で応用されている病期分類, 形態分類と対比して検討を行った.このscoringsystemは, 病期分類に比し形態分i類とよく相関していた.また, totalscore≧300群は生存期間が有意に短く予後不良であった.totalscore≥300群は, ゆっくりした経過をとり化学療法なしに観察できる症例と思われた.経過を観察し得た症例では, 病勢を反映してAg-NORsの染色パターンが変化した.Ag-NORsは ...
OHATA, Masahiko, NAKAMURA, Shinobu, OKABE, Youko   +2 more
openaire   +2 more sources

First Cytogenetic Characterization of the Amazon Catfish Leiarius marmoratus (Gill, 1870) and Its Hybrid with Pseudoplatystoma reticulatum (Eigenmann & Eigenmann, 1889)

Caryologia, 2021
This study reports the first cytogenetic characterization of the Amazonian catfish Leiarius marmoratus (“jandiá”) and its F1 (first generation or interspecific) hybrid “cachandiá” with Pseudoplatystoma reticulatum (“cachara”).
Fernanda Dotti do Prado, Fabio Porto-Foresti, Andrea Abrigato de Freitas Mourão, Fausto Foresti, José Augusto Senhorini   +4 more
doaj   +1 more source

Determination of Breed Differences in Ag-NORs Occurrence in Pigs

Folia Biologica, 2005
The investigations involved pigs of three breeds: Pietrain, Zlotnicka Spotted and Polish Landrace. The polymorphism in the number and size of nucleolar organizer regions was analyzed in animals of different breeds. It was observed that the average size of Ag-NORs in pigs was higher in chromosome pair 10 than in pair 8.
Maria Bogdzińska, Jadwiga Araszkiewicz, Karolina Katlewska, Sławomir Mroczkowski   +3 more
openaire   +1 more source

Karyotypes of Danubian lineage brown trout and their hybrids

Caryologia, 2019
Cytogenetic analysis of brown trout, Salmo trutta, have been described for different populations and morphs; however, cytogenetic analysis of interspecific brown trout hybrids is unknown.
Melike Alemdağ, Rafet Cagri Ozturk, Sebnem Atasaral Sahin, Ilhan Altinok   +3 more
doaj   +1 more source

Ag-NOR proteins and rDNA transcriptional activity in plant cells. [PDF]

Journal of Histochemistry & Cytochemistry, 1990
In this work we used Allium cepa root meristem cells in actively growing conditions and under treatment with the protein synthesis inhibitors cycloheximide (CHM) and puromycin. Morphological and quantitative results indicate that these drugs induce dramatic alterations in nucleolar structure reflected by a decrease of nucleolar size, much more evident ...
F J, Moreno, R M, Rodrigo, G, Garcia-Herdugo   +2 more
openaire   +2 more sources

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

FEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes, Guilherme M. Azevedo, Amanda P. Barcellos, Diana Bahia   +3 more
wiley   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

FEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz, Mihály Mérey, Rebeka Vásárhelyi, Ramóna Pék, Victor Imburchia, László Henn, Adrián Kószó, Nicholas D. Lakin, Ivan Ahel, Sébastien Huet, Ágnes Czibula, Gyula Timinszky   +11 more
wiley   +1 more source

Evidence for TTAGG telomere repeats and rRNA gene clusters in leafhoppers of the genus Alebra (Hemiptera: Auchenorrhyncha: Cicadellidae)

European Journal of Entomology, 2015
The leafhopper genus Alebra Fieber, 1872 comprises a complex of morphologically similar species. The chromosome complements (karyotypes) of five Alebra species, i.e. A. albostriella, A. coryli, A. viridis, A. wahlbergi and a new, yet undescribed species,
Valentina G. KUZNETSOVA, Anna MARYAŃSKA-NADACHOWSKA, Boris ANOKHIN, Dora AGUIN-POMBO   +3 more
doaj   +1 more source