نتایج جستجو برای: internal transcribed spacer 1
تعداد نتایج: 2951404 فیلتر نتایج به سال:
Three dictyostelid isolates were found in Spain and Argentina that are morphologically different from known species. These isolates have some features similar to Dictyostelium sphaerocephalum (Oudem.) Sacc., Marchal & É.J. Marchal, but differ in size and sorocarp branching pattern. We sequenced the nuclear ribosomal internal transcribed spacer region to explore phylogenetic relationships among ...
Functional and ecological signicance of rDNA intergenic spacer variation in a clonal organism under divergent selection for production rate Elena Gorokhova, Thomas E. Dowling, Lawrence J. Weider, Teresa J. Crease and James J. Elser Department of Biology, Arizona State University, Tempe, AZ 85287-1501, USA The University of Oklahoma Biological Station, HC-71, Box 205, Kingston, OK 73439, USA De...
The unprecedented ongoing biodiversity decline necessitates scalable means of monitoring in order to fully understand the underlying causes. DNA metabarcoding has potential provide a powerful tool for accurate and rapid monitoring. Unfortunately, many cases, lack universal standards undermines widespread application metabarcoding. One most important considerations plants, aside from selecting p...
The aim of the present study was to analyse sequences of 16S-23S internal transcribed spacer regions of different Geobacillus species, identify structural elements of these regions and evaluate the possibility to use these structural elements in the taxonomy of the genus Geobacillus. GEOBAC-PCR was used in order to obtain 16S-23S rRNA internal transcribed spacer sequences. Certain structural el...
The portion of the internal transcribed spacer 1 found on 20S pre-rRNA accumulates in Saccharomyces cerevisiae lacking 5'----3' exoribonuclease 1, showing that an endonucleolytic cleavage at the 3' terminus of 18S rRNA is involved in the 20S pre-rRNA to 18S mature rRNA conversion. Smaller fragments of the spacer sequence are also found. The exoribonuclease may be involved as a cytoplasmic RNase...
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