Results 31 to 40 of about 9,083 (166)

Sequences and evolutionary analysis of mouse 5S rDNAs. [PDF]

open access: yesMolecular Biology and Evolution, 1994
We selectively amplified the spacer regions of genes for mouse 5S ribosomal RNA (rRNA), which are tandemly repeated, by the PCR method, using primers specific to the two ends of the coding region for 5S rRNA. Fragments of approximately 1.6 kb were amplified from DNA from the BALB/cCrSlc mouse (Mus musculus domesticus), the SM/J mouse (M. m. domesticus),
H, Suzuki, K, Moriwaki, S, Sakurai
openaire   +2 more sources

Regulation of Pol I-Transcribed 45S rDNA and Pol III-Transcribed 5S rDNA in Arabidopsis [PDF]

open access: yesPlant and Cell Physiology, 2011
The 18S, 5.8S and 25S rRNAs, which result from the 45S precursor, together with 5S rRNAs, are central components of the ribosome. The integration of one molecule of each rRNA per ribosome necessitates an elaborate coordination between transcriptions of the two ribosomal DNA (rDNA) families.
Elodie, Layat   +2 more
openaire   +2 more sources

Molecular Organization and Chromosomal Localization Analysis of 5S rDNA Clusters in Autotetraploids Derived From Carassius auratus Red Var. (♀) × Megalobrama amblycephala (♂)

open access: yesFrontiers in Genetics, 2019
The autotetraploid fish (4n = 200, RRRR) (abbreviated as 4nRR) resulted from the whole genome duplication of red crucian carp (Carassius auratus red var., 2n = 100, RR) (abbreviated as RCC).
QinBo Qin   +7 more
doaj   +1 more source

Molecular organization of 5S rDNA in sharks of the genusRhizoprionodon: insights into the evolutionary dynamics of 5S rDNA in vertebrate genomes

open access: yesGenetics Research, 2009
SummaryIn this study, we attempted a molecular characterization of the 5S rDNA in two closely related species of carcharhiniform sharks,Rhizoprionodon lalandiiandRhizoprionodon porosus, as well as a further comparative analysis of available data on lampreys, several fish groups and other vertebrates.
Pinhal, Danillo   +3 more
openaire   +3 more sources

Characterisation of 5S rDNA inGasterosteus aculeatus(Teleostei, Gasterosteidae) [PDF]

open access: yesItalian Journal of Zoology, 1999
Abstract The 5S rRNA genes of Gasterosteus aculeatus were characterised. Genomic DNA was amplified by PCR using two primers constructed in different salmonid species in order both to extract the total 5S rDNA (coding region + nontranscribed spacer region) and to generate amplified DNA products only if 5S rDNAs were tandemly arrayed.
ROCCO, Lucia   +4 more
openaire   +2 more sources

Heterochromatin diversity and its co-localization with 5S and 45S rDNA sites in chromosomes of four Maxillaria species (Orchidaceae)

open access: yesGenetics and Molecular Biology, 2006
We investigated four orchids of the genus Maxillaria (M. discolor, M. acicularis, M. notylioglossa and M. desvauxiana) in regard to the position of heterochromatin blocks as revealed using chromomycin A3 (CMA) and 4'-6-diamidino-2-phenylindole (DAPI ...
Juliano S. Cabral   +2 more
doaj   +1 more source

Structure of 5S rDNA sequence of the gibel carp (Carassius gibelio) with 2n=100 chromosomes

open access: yesFrontiers in Marine Science, 2015
In vertebrate, the 5S ribosomal DNA (rDNA) consists of a conserved coding (transcriptional) unit of 120 bp (5S), which is separated from the next unit by a nontranscribed spacer (NTS). The coding sequence and the NTS together form a repeat unit which can
Lech Kirtiklis
doaj   +1 more source

Molecular organization of 5S rDNA in fishes of the genusBrycon [PDF]

open access: yesGenome, 2001
There are few reports on the genomic organization of 5S rDNA in fish species. To characterize the 5S rDNA nucleotide sequence and chromosomal localization in the Neotropical fishes of the genus Brycon, 5S rDNA copies from seven species were generated by PCR. The nucleotide sequences of the coding region (5S rRNA gene) and the nontranscribed spacer (NTS)
Wasko, A. P.   +3 more
openaire   +3 more sources

Physical Mapping of the 5S and 18S rDNA in Ten Species of Hypostomus Lacépède 1803 (Siluriformes: Loricariidae): Evolutionary Tendencies in the Genus

open access: yesThe Scientific World Journal, 2014
Hypostomus is a diverse group with unclear aspects regarding its biology, including the mechanisms that led to chromosome diversification within the group.
Vanessa Bueno   +5 more
doaj   +1 more source

Molecular organization and chromosomal localization of 5S rDNA in Amazonian Engystomops (Anura, Leiuperidae)

open access: yesBMC Genetics, 2012
Background For anurans, knowledge of 5S rDNA is scarce. For Engystomops species, chromosomal homeologies are difficult to recognize due to the high level of inter- and intraspecific cytogenetic variation. In an attempt to better compare the karyotypes of
Rodrigues Débora   +2 more
doaj   +1 more source

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