Results 231 to 240 of about 31,682 (266)

Sequence Variation in the Ribosomal DNA Internal Transcribed Spacer of Tridacna crocea

Marine Biotechnology, 2000
DNA-based genetic markers are needed to augment existing allozyme markers in the assessment of genetic diversity of wild giant clam populations. The dearth of polymorphic mitochondrial DNA regions amplified from known universal polymerase chain reaction (PCR) primers has led us to search other regions of the genome for viable sources of DNA ...
E T, Yu, M A, Juinio-Meñez, V D, Monje
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Fourteen internal transcribed spacers in the circular ribosomal DNA of Euglena gracilis

Journal of Molecular Biology, 1990
Cytoplasmic ribosomes from Euglena gracilis contain 16 rRNA components. These include the typical 5 S, 5.8 S and 19 S rRNAs that are found in other eukaryotes as well as 13 discrete small RNAs that interact to form the equivalent of eukaryotic 25-28 S rRNA (accompanying paper).
M N, Schnare, J R, Cook, M W, Gray
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Length variation in the internal transcribed spacer of ribosomal DNA in chanterelles

Mycological Research, 1994
DNA was extracted from 31 basidiomes of Cantharellus, Craterellus , and other basidiomycetes considered to have affinities to the Cantharellaceae. The internal transcribed spacer (ITS) between the 18S and the 28S genes of the nuclear ribosomal DNA was amplified using the polymerase chain reaction.
Toby Feibelman, Paul Bayman, William G. Cibula   +2 more
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Ribosomal DNA intergenic spacer of indoor wood-decay fungi

hfsg, 2008
Abstract Indoor wood-decay fungi are economically very important. Approximately half of the total damage caused by indoor fungi in Germany is caused by species of the Coniophoraceae. The sequence of the intergenic spacer (IGS) region of the ribosomal DNA was elucidated with the following fungi of this family: Serpula lacrymans (true dry ...
Olaf Schmidt, Ute Moreth
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Typing truffle species by PCR amplification of the ribosomal DNA spacers

Mycological Research, 1994
Variation within the internal transcribed spacer (ITS) and the intergenic spacer (IGS) of the ribosomal RNA genes of European species of Tuber was examined by polymerase chain reaction (PCR) and coupled restriction fragment length polymorphism (RFLP) analysis.
Henrion, B., Chevalier, G., Martin, F.
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Ribosomal DNA spacer-length variation inSecale spp. (Poaceae)

Plant Systematics and Evolution, 1990
Variation in ribosomal DNA spacer length was analysed in 23 populations of 12Secale spp. by restriction enzyme analysis. Digestion of rDNA with Taq I endonuclease enzyme yields spacer fragments that include the subrepeat array and the non-repetitive region downstream of the array.
P. Reddy, R. Appels, B. R. Baum
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Molecular Phylogenetic Analysis of Ixodid Ticks Based on the Ribosomal DNA Spacer, Internal Transcribed Spacer 2, Sequences

The Journal of Parasitology, 2000
An internal transcribed spacer (ITS2) sequence between the 5.8S and 28S rRNA genes was used to estimate the phyletic relationships among Ixodes spp. tick vectors of Lyme disease-causing Borrelia spirochetes. Analysis indicates that Borrelia burgdorferi sensu lato species associated with Lyme disease are found mainly in ticks of the Ixodes ricinus ...
M, Fukunaga, M, Yabuki, A, Hamase, J H, Oliver, M, Nakao   +4 more
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Ribosomal DNA spacer probes for yeast identification: Studies in the genus Metschnikowia

Yeast, 1991
AbstractTo test whether DNA probes derived from ribosomal DNA spacer sequences are suitable for rapid and species‐specific yeast identification, a pilot study was undertaken. A 7·7 kb entire ribosomal DNA unit of the type strain of Metschnikowia reukaufii was isolated, cloned and mapped.
M, Henriques, I, Sá-Nogueira, G, Giménez-Jurado, N, van Uden   +3 more
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Conservation of intergenic spacer length in ribosomal DNA of the tailed frog, Ascaphus truei

Gene, 1992
We have examined the organization of cloned rDNA [encoding ribosomal RNA (rRNA)] repeat units from the tailed frog, Ascaphus truei, and have compared rDNA spacer lengths in the genomes of eleven individuals from two widely-separated populations. This comparison has shown that the A.
G T, Morgan, K M, Middleton
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Why Nuclear Ribosomal DNA Spacers (ITS) Tell Different Stories in Quercus

Molecular Phylogenetics and Evolution, 2001
The molecular systematics of Quercus (Fagaceae) was recently assessed by two teams using independently generated ITS sequences. Although the results disagreed in several remarkable features, the phylogenetic trees for either hypothesis were highly supported by bootstrap resampling. We have reanalyzed the ITS sequences used by both teams (eight taxa) to
M, Mayol, J A, Rosselló
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