Results 121 to 130 of about 9,083 (166)

Chromosomal Localization of the 5S and 45S rDNA Sites and 5S rDNA Sequence Analysis in Nelumbo Species

Agricultural Sciences in China, 2011
The physical location of 45S and 5S rDNA sites by double-target fluorescence in situ hybridization (FISH) and 5S rDNA non-transcribed spacer (NTS) sequences was studied in five accessions of Nelumbo nucifera Gaertn. and one accession of N. nucifera subsp. lutea (Willd.). The chromosome number of all tested materials was 2n=16.
Ying DIAO, Ming-quan ZHOU, Zhong-li HU
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Molecular organization of 5S rDNA in bitterlings (Cyprinidae)

Genetica, 2008
Molecular organization and nucleotide sequences of the 5S rRNA gene and NTS were investigated in freshwater fish, bitterlings (Acheilognathinae), including 10 species/subspecies of four genera, Acheilognathus, Pseudoperilampus, Rhodeus, and Tanakia, to understand the evolutionary trait of 5S rDNA arrays.
Mika, Fujiwara, Junya, Inafuku, Akiko, Takeda, Akiko, Watanabe, Atushi, Fujiwara, Sei-Ichi, Kohno, Souichirou, Kubota   +6 more
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The Dictyostelium discoideum 5S rDNA Is Organized in the Same Transcriptional Orientation as the Other rDNAs

Biochemical and Biophysical Research Communications, 1993
In eukaryotes 5S rRNA genes are transcribed by RNA polymerase III. These genes occur in D. discoideum on the ca. 90 copies of an extrachromosomal palindrom together with the other ribosomal RNAs, which are generally transcribed by RNA polymerase I. A 5S rRNA gene has been isolated and its nucleotide sequence as well as the organization of the gene ...
J, Hofmann, T, Winckler, A, Hanenkamp, M, Bukenberger, G, Schumann, R, Marschalek, T, Dingermann   +6 more
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Localization of the 5S rRNA genes and evidence for diversity in the 5S rDNA region of maize

Gene, 1981
Abstract The 5S rRNA genes of maize are located in the long arm of chromosome 2 (88% of the distance from the centromere to the end) and organized in a 320-bp repeat. Genomic blots of maize DNA digested with the restriction enzymes Bam HI and Msp I reveal ladders of bands in multiples of 320 bp.
P N, Mascia, I, Rubenstein, R L, Phillips, A S, Wang, L Z, Xiang   +4 more
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5S rDNA genome regions of Lens species

Genome, 2005
The length variability of the nontranscribed spacer (NTS) of the 5S rDNA repeats was analyzed in species of the genus Lens by means of PCR amplification. The NTS ranged from ~227 to ~952 bp. The polymorphism detected was higher than previous NTS polymorphisms described in this genus. Three NTS length variants from Lens culinaris subsp. culinaris and 2
M, Fernández, M L, Ruiz, C, Linares, A, Fominaya, M, Pérez de la Vega   +4 more
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Intraindividual and Interspecies Variation in the 5S rDNA of Coregonid Fish

Journal of Molecular Evolution, 1998
This study was designed to characterize further the nontranscribed intergenic spacers (NTSs) of the 5S rRNA genes of fish and evaluate this marker as a tool for comparative studies. Two members of the closely related North American Great Lakes cisco species complex (Coregonus artedi and C. zenithicus) were chosen for comparison.
S L, Sajdak, K M, Reed, R B, Phillips
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Diverged 5s rRNA sequences adjacent to 5s rRNA genes in the rDNA ofPythium pachycaule

Current Genetics, 1996
The non-transcribed spacer of the ribosomal DNA repeat of Pythium pachycaule was found to exist in two versions, one about 200 bp longer than the other. Both versions contained a conserved 5s rRNA gene in inverted orientation and a diverged copy of the 5s sequence as a tandem repeat, with a spacer of about 180 bp between them.
A, Belkhiri, G R, Klassen
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Physical mapping of 5S and 45S rDNA loci in pufferfishes (Tetraodontiformes)

Genetica, 2006
Chromosomal features, location and variation of the major and minor rDNA genes cluster were studied in three pufferfish species: Sphoeroides greeleyi and Sphoeroides testudineus (Tetraodontidae) and Cyclichthys spinosus (Diodontidae). The location of the major rDNA was revealed with an 18S probe in two loci for all species. The minor rDNA loci (5S rDNA)
Rafael Bueno, Noleto, Marcelo Ricardo, Vicari, Roger Raupp, Cipriano, Roberto Ferreira, Artoni, Marta Margarete, Cestari   +4 more
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Molecular Organization and Polymorphism of 5S rDNA in Carpathian Bees

Cytology and Genetics, 2021
The natural distribution area of the western honey bee, Apis mellifera L., covers Europe, West Asia and Africa. Adaptation to local environmental conditions resulted in the formation of numerous subspecies and ecotypes of western honey bee, which represent a convenient model for studying the microevolution of insects.
N. M. Roshka, O. V. Cherevatov, R. A. Volkov   +2 more
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Non-Random Distribution of 5S rDNA Sites and Its Association with 45S rDNA in Plant Chromosomes

Cytogenetic and Genome Research, 2015
5S and 45S rDNA sites are the best mapped chromosome regions in eukaryotic chromosomes. In this work, a database was built gathering information about the position and number of 5S rDNA sites in 784 plant species, aiming to identify patterns of distribution along the chromosomes and its correlation with the position of 45S rDNA sites.
Fernando, Roa, Marcelo, Guerra
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