Results 211 to 220 of about 31,740 (263)

A preliminary survey of feline filarial parasites in Kerala State, India. [PDF]

Parasitol Res
Preena P, Mathews MS, Hana VP, Manoj S, Sajeendran A, Santhosh AK, Anand A, Sasi A, Athira KS, Ajith Y, Lakshmanan B, Ajithkumar S, Tresamol PV.   +12 more
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Nontranscribed spacers in Drosophila ribosomal DNA

Chromosoma, 1981
Ribosomal DNA nontranscribed spacers in Drosophila virilis DNA have been examined in some detail by restriction site analysis of cloned segments of rDNA, nucleic acid hybridizations involving unfractionated rDNA, and base composition estimates. The overall G + C content of the spacer is 27--28%; this compares with 39% for rDNA as a whole, 40% for main ...
P M, Rae, T, Barnett, V L, Murtif
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Patterns of ribosomal DNA spacer lengths are inherited

Journal of Molecular Biology, 1976
Abstract The non-transcribed spacer regions in Xenopus laevis ribosomal DNA vary in length, even within a single nucleolar organizer. The pattern of spacer lengths is sufficiently different from one nucleolar organizer to another to allow the pattern to be used as a genetic marker.
R H, Reeder, D D, Brown, P K, Wellauer, I B, Dawid   +3 more
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Transcription of tomato ribosomal DNA and the organization of the intergenic spacer

Molecular and General Genetics MGG, 1990
The organization of the intergenic spacer of a 9.04 kb tomato ribosomal RNA gene (rDNA) was determined. The 3258 bp spacer contains two major repeat elements enclosing a region which includes 351 bp of an 81.8% A --T rich sequence. A block of nine 53 bp repeats begins 388 bp downstream from the 3' end of the 25S rRNA.
K L, Perry, P, Palukaitis
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Ribosomal DNA Intergenic Spacer of the Swimming Crab, Charybdis japonica

Journal of Molecular Evolution, 1999
We have determined the full sequence of the ribosomal DNA intergenic spacer (IGS) of the swimming crab, Charybdis japonica, by long PCR for the first time in crustacean decapods. The IGS is 5376 bp long and contains two nonrepetitive regions separated by one long repetitive region, which is composed mainly of four subrepeats (subrepeats I, II, III, and
Ryu, SH, Do, Yoonkyung, Hwang, UW, Choe, CP, Kim, W   +4 more
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Nucleotide sequence of the intergenic spacer (IGS) of the tomato ribosomal DNA

Plant Molecular Biology, 1989
The intergenic spacer (IGS) of the ribosomal DNA spans the region from the 3' end of the 25S rRNA gene to the 5' end of the 18S rRNA gene. Here we report the sequence of the IGS of tomato (Lycopersicon esculentum)
W, Schmidt-Puchta, I, Günther, H L, Sänger   +2 more
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Complex structure of the ribosomal DNA spacer of Cucumis sativus (cucumber)

Molecular and General Genetics MGG, 1988
The nuclear 18 S, 5.8 S and 25 S ribosomal RNA genes (rDNA) of Cucumis sativus (cucumber) occur in at least four different repeat types of 10.2, 10.5, 11.5, and 12.5 kb in length. The intergenic spacer of these repeats has been cloned and characterized with respect to sequence organization.
M, Ganal, R, Torres, V, Hemleben
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The internal transcribed spacer of nuclear ribosomal DNA in the gymnosperm Gnetum

Molecular Phylogenetics and Evolution, 2005
We analyze the structure of the internal transcribed spacers ITS1 and ITS2 of the nuclear ribosomal DNA in the gymnosperm Gnetum, using a phylogenetic framework derived mainly from an intron in the nuclear low-copy LEAFY gene. Gnetum comprises 25-35 species in South America, Africa, and Asia, of which we sampled 16, each with two to six clones ...
Hyosig, Won, Susanne S, Renner
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Restriction analysis of the nontranscribed spacers of Xenopus laevis ribosomal DNA

Cell, 1977
Abstract We have studied sequence organization in the nontranscribed spacer regions of four cloned fragments of Xenopus laevis ribosomal DNA. Each clone contains a spacer of different length. The distribution of cleavage sites for several restriction endonucleases have been investigated in these spacers.
P, Botchan, R H, Reeder, I B, Dawid
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DNA sequence analyses of the ribosomal spacer regions in theTriticeae

Plant Systematics and Evolution, 1988
Two regions of the ribosomal DNA (rDNA) were sequenced from a range of species from the tribeTriticeae. One region, the central spacer, was found to be more divergent in sequence than the other, the 18 S-spacer junction. Both regions contained sequences 20–30 bp long which were more highly conserved than the remainder of the region and their possible ...
C. L. McIntyre, B. C. Clarke, R. Appels
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