Results 1 to 10 of about 31,682 (266)
Deletions in (CCCT)n repeat regions belonging to the human pRNA gene inhibit its expression [PDF]
Human GenomicsBackground Ribosomal DNA (rDNA), the most abundantly expressed locus in the human genome, is represented by hundreds of units per cell. Each unit includes a 13 kb long region (47S rDNA) containing the genes of ribosomal particles, and a 30 kb long ...
Nikola Chmúrčiaková +3 more
doaj +2 more sources
Hoya pyrifolia (Apocynaceae), a new species from south-western Yunnan, China [PDF]
PhytoKeys, 2021 Hoya pyrifolia, a new species of Apocynaceae from Yunnan Province, China, is described and illustrated. Results from phylogenetic analyses, based on combined DNA fragments of the nuclear ribosomal external transcribed spacer (ETS), intergeneric ...
Er-Feng Huang +6 more
doaj +3 more sources
Structure of the intergenic spacers in chicken ribosomal DNA [PDF]
Genetics Selection Evolution, 2019 Abstract Background Ribosomal DNA (rDNA) repeats are situated in the nucleolus organizer regions (NOR) of chromosomes and transcribed into rRNA for ribosome biogenesis. Thus, they are an essential component of eukaryotic genomes.
Dyomin, Alexander +10 more
openaire +6 more sources
Transcriptional role for the nontranscribed spacer of rat ribosomal DNA. [PDF]
Molecular and Cellular Biology, 1986 In vitro transcription of the rat rRNA gene led to the identification of a region within a 3.4-kilobase fragment of the nontranscribed spacer (NTS) which significantly increased the transcription of rat ribosomal DNA. Promoter constructs containing this region were transcribed up to 17-fold more efficiently in vitro than templates with only 167 or 286 ...
B G, Cassidy +2 more
openaire +2 more sources
Hayati Journal of Biosciences, 2012 Tempe fermentation involved complex microbial communities which are only revealed partially through culture dependent methods. Culture-independent methods would be potential to unravel this complex microbial fermentation. Appropriate DNA extraction is an
CECILIA ANNA SEUMAHU +3 more
doaj +3 more sources
Elatostema qinzhouense (Urticaceae), a new species from limestone karst in Guangxi, China [PDF]
PeerJ, 2021 Elatostema qinzhouense L.F. Fu, A.K. Monro & Y.G. Wei, a new species from Guangxi, China is described and illustrated. Morphologically, E. qinzhouense is most similar to E.
Longfei Fu +7 more
doaj +2 more sources
Sequence analysis of the ribosomal DNA ITS2 region in two Trichogramma species (Hymenoptera: Trichogrammatidae) [PDF]
Archives of Biological Sciences, 2011 Two egg parasitoid wasps, Trichogramma euproctidis (Girault) and Trichogramma brassicae (Bezdenko) (Hymenoptera: Trichogrammatidae) were identified in the study.
Ercan Sumer Fahriye +3 more
doaj +1 more source
Occurrence in Korea of Rust Disease on Tilia mandshurica Caused by Pucciniastrum tiliae
한국균학회지, 2023 Tilia mandshurica trees with rust symptoms have consistently been noticed during disease surveys in Korea since 2006. Based on the morphological examination and molecular sequence analysis of the internal transcribed spacer and large subunit of ribosomal
Jae Sung Lee +3 more
doaj +1 more source
Functional analysis of transcribed spacers of yeast ribosomal DNA. [PDF]
The EMBO Journal, 1990 Making use of an rDNA unit, containing oligonucleotide tags in both the 17S and 26S rRNA gene, we have analyzed the effect of various deletions in the External Transcribed Spacer (ETS) and in one of the Internal Transcribed Spacers 1 (ITS1) on the process of ribosome formation in yeast.
W, Musters +4 more
openaire +2 more sources
Phylogenetic analysis of Polystigma and its relationship to Phyllachorales
Phytopathologia Mediterranea, 2015 Polystigma amygdalinum, which causes red leaf blotch of almond, is one of the few fungal plant pathogens to remain a taxonomic enigma, primarily because it has resisted cultivation and causes almond leaf blotch only in restricted regions of the world. To
Azadeh HABIBI +2 more
doaj +1 more source