Results 11 to 20 of about 31,682 (266)
Transcription in cloned spacers of Xenopus laevis ribosomal DNA. [PDF]
Proceedings of the National Academy of Sciences, 1983 Rare individuals of Xenopus laevis exhibit frequent initiation of transcription in the spacers of oocyte ribosomal DNA (rDNA). Using electron microscopy we have characterized spacer transcription in such an individual and have confirmed that the sites of transcription initiation correspond to the imperfectly duplicated promoters ("Bam islands") present
G T, Morgan, R H, Reeder, A H, Bakken
openaire +2 more sources
Dermea piceina (Dermateaceae): An Unrecorded Endophytic Fungus of Isolated from Abies koreana
한국균학회지, 2020 We found an unrecorded endophytic fungus, Dermea piceina J.W. Groves, isolated from alpine conifer Abies koreana. Until now only one Dermea species, D. cerasi, has been reported in Korea.
Ju-Kyeong Eo, Eunsu Park, Han-Na Choe
doaj +1 more source
Ribosomal DNA (rDNA) spacer polymorphism in mole rats. [PDF]
Molecular Biology and Evolution, 1987 Genetic differentiation of ribosomal DNA (rDNA) nontranscribed-spacer (NTS) polymorphism was analyzed in 50 individuals from 13 populations among the four chromosomal species (2n = 52, 2n = 54, 2n = 58, and 2n = 60) of subterranean mole rats of the Spalax ehrenbergi complex in Israel.
H, Suzuki, K, Moriwaki, E, Nevo
openaire +2 more sources
The structure of the maize ribosomal DNA spacer region
Nucleic Acids Research, 1986 A combination of a single stranded plasmid vector and ordered deletions were used to determine the complete nucleotide sequence of a rDNA spacer region isolated from the DNA of maize Black Mexican Sweet suspension cells. The sequence reveals the presence of ten "200 base" subrepeats within the maize rDNA spacer region.
M D, McMullen +3 more
openaire +3 more sources
Cloning and sequencing of the complicated rDNA gene family of Bos taurus
Czech Journal of Animal Science, 2006 The rDNA genes coding for ribosomal RNA (rRNA) in animals are repeat sequences with high GC content and complicated structure. Based on the sequences of human ribosomal DNA repeat unit and transcription unit and the long and accurate PCR method with LA ...
D. Tang +5 more
doaj +1 more source
Characterizing the ribosomal tandem repeat and its utility as a DNA barcode in lichen-forming fungi
BMC Evolutionary Biology, 2020 Background Regions within the nuclear ribosomal operon are a major tool for inferring evolutionary relationships and investigating diversity in fungi.
Michael Bradshaw +8 more
doaj +1 more source
First Reports of Unrecorded Mortierellomycetes and Umbelopsidomycetes Fungi from Freshwater Ecosystems in Korea [PDF]
한국균학회지, 2023 In this study, we isolated several fungal strains from filtered water and sediment collected from rivers and streams. The strains were identified by molecular phylogenetic analyses of rDNA sequences (internal transcribed spacer [ITS], large subunit of ...
Jaeduk Goh, Yoosun Oh, Hye Yeon Mun
doaj +1 more source
Telomere and ribosomal DNA repeats are chromosomal targets of the bloom syndrome DNA helicase
BMC Cell Biology, 2003 Background Bloom syndrome is one of the most cancer-predisposing disorders and is characterized by genomic instability and a high frequency of sister chromatid exchange. The disorder is caused by loss of function of a 3' to 5' RecQ DNA helicase, BLM. The
Paric Enesa +2 more
doaj +1 more source
Journal of Asia-Pacific Biodiversity, 2020 Indigofera cordifolia Heyne ex Roth. so far is reported only in the Arabian Peninsula from Oman. A recent field expedition in the Farasan Archipelago, Saudi Arabia, Red Sea, resulted in documentation of this species in Dumsuk Island.
Samah A. Alharbi, Rahmah N. Al-Qthanin
doaj +1 more source
Tongoloa arguta (Apiaceae), a new species from southwest China [PDF]
PhytoKeys, 2020 A new species Tongoloa arguta (Apiaceae) is described and illustrated in this article. The new species grows in alpine bushes and meadows in south-western China. It resembles T.
Ling-Jian Gui +5 more
doaj +3 more sources