Results 1 to 10 of about 498 (87)

Heterochromatic siRNAs and DDM1 independently silence aberrant 5S rDNA transcripts in Arabidopsis. [PDF]

PLoS ONE, 2009
5S ribosomal RNA gene repeats are arranged in heterochromatic arrays (5S rDNA) situated near the centromeres of Arabidopsis chromosomes. The chromatin remodeling factor DDM1 is known to maintain 5S rDNA methylation patterns while silencing transcription ...
Todd Blevins, Olga Pontes, Craig S Pikaard, Frederick Meins   +3 more
doaj   +1 more source

Molecular Cytogenetics of Eurasian Species of the Genus Hedysarum L. (Fabaceae)

Plants, 2021
The systematic knowledge on the genus Hedysarum L. (Fabaceae: Hedysareae) is still incomplete. The species from the section Hedysarum are valuable forage and medicinal resources. For eight Hedysarum species, we constructed the integrated schematic map of
Olga Yu. Yurkevich, Tatiana E. Samatadze, Inessa Yu. Selyutina, Svetlana I. Romashkina, Svyatoslav A. Zoshchuk, Alexandra V. Amosova, Olga V. Muravenko   +6 more
doaj   +1 more source

The Ribosomal DNA Loci of the Ancient Monocot Pistia stratiotes L. (Araceae) Contain Different Variants of the 35S and 5S Ribosomal RNA Gene Units

Frontiers in Plant Science, 2022
The freshwater plant water lettuce (Pistia stratiotes L.) grows in warm climatic zones and is used for phytoremediation and biomass production. P. stratiotes belongs to the Araceae, an ecologically and structurally diverse early monocot family, but the ...
Anton Stepanenko, Guimin Chen, Phuong T. N. Hoang, Phuong T. N. Hoang, Jörg Fuchs, Ingo Schubert, Nikolai Borisjuk   +6 more
doaj   +1 more source

Organization and variation analysis of 5S rDNA in different ploidy-level hybrids of red crucian carp × topmouth culter. [PDF]

PLoS ONE, 2012
Through distant crossing, diploid, triploid and tetraploid hybrids of red crucian carp (Carassius auratus red var., RCC♀, Cyprininae, 2n = 100) × topmouth culter (Erythroculter ilishaeformis Bleeker, TC♂, Cultrinae, 2n = 48) were successfully produced ...
Weiguo He, Qinbo Qin, Shaojun Liu, Tangluo Li, Jing Wang, Jun Xiao, Lihua Xie, Chun Zhang, Yun Liu   +8 more
doaj   +1 more source

Nucleotide sequence, genomic organization and chromosome localization of 5S rDNA in two species of Curimatidae (Teleostei, Characiformes)

Genetics and Molecular Biology, 2006
The 5S ribosomal DNA (5S rDNA) of higher eukaryotes is organized in repeat units of tandem arrays composed of a 5S rDNA coding region, conserved even among non-related taxa, and a variable non-transcribed spacer sequence (NTS). To contribute to knowledge
Lessandra Viviane de Rosa Santos, Fausto Foresti, Adriane Pinto Wasko, Claudio Oliveira, Cesar Martins   +4 more
doaj   +1 more source

Molecular Evolution and Organization of Ribosomal DNA in the Hawkweed Tribe Hieraciinae (Cichorieae, Asteraceae)

Frontiers in Plant Science, 2021
Molecular evolution of ribosomal DNA can be highly dynamic. Hundreds to thousands of copies in the genome are subject to concerted evolution, which homogenizes sequence variants to different degrees.
Judith Fehrer, Renáta Slavíková, Ladislava Paštová, Jiřina Josefiová, Patrik Mráz, Jindřich Chrtek, Jindřich Chrtek, Yann J. K. Bertrand   +7 more
doaj   +1 more source

Molecular organization and phylogenetic analysis of 5S rDNA in crustaceans of the genus Pollicipes reveal birth-and-death evolution and strong purifying selection

BMC Evolutionary Biology, 2011
Background The 5S ribosomal DNA (5S rDNA) is organized in tandem arrays with repeat units that consist of a transcribing region (5S) and a variable nontranscribed spacer (NTS), in higher eukaryotes. Until recently the 5S rDNA was thought to be subject to
Martínez-Lage Andrés, Rodríguez-Fariña Fernanda, González-Tizón Ana M, Seoane David, Perina Alejandra   +4 more
doaj   +1 more source

Fine organization of genomic regions tagged to the 5S rDNA locus of the bread wheat 5B chromosome

BMC Plant Biology, 2017
Background The multigene family encoding the 5S rRNA, one of the most important structurally-functional part of the large ribosomal subunit, is an obligate component of all eukaryotic genomes.
Ekaterina M. Sergeeva, Andrey B. Shcherban, Irina G. Adonina, Michail A. Nesterov, Alexey V. Beletsky, Andrey L. Rakitin, Andrey V. Mardanov, Nikolai V. Ravin, Elena A. Salina   +8 more
doaj   +1 more source

Chromosomal Locations of 5S and 45S rDNA in Gossypium Genus and Its Phylogenetic Implications Revealed by FISH. [PDF]

PLoS ONE, 2013
We investigated the locations of 5S and 45S rDNA in Gossypium diploid A, B, D, E, F, G genomes and tetraploid genome (AD) using multi-probe fluorescent in situ hybridization (FISH) for evolution analysis in Gossypium genus.
Yimei Gan, Fang Liu, Dan Chen, Qiong Wu, Qin Qin, Chunying Wang, Shaohui Li, Xiangdi Zhang, Yuhong Wang, Kunbo Wang   +9 more
doaj   +1 more source

5S rDNA characterization in twelve Sciaenidae fish species (Teleostei, Perciformes): depicting gene diversity and molecular markers

Genetics and Molecular Biology, 2008
In order to extend the genetic data on the Sciaenidae fish family, the present study had the purpose to characterize PCR-generated 5S rDNA repeats of twelve species of this group through PAGE (Polyacrylamide Gel Electrophoresis) analysis.
Fernanda A. Alves-Costa, Cesar Martins, Fernanda Del Campos de Matos, Fausto Foresti, Claudio Oliveira, Adriane P. Wasko   +5 more
doaj   +1 more source