Literature DB >> 1474605

Is higher-order structure conserved in eukaryotic ribosomal DNA intergenic spacers?

G D Baldridge1, M W Dalton, A M Fallon.   

Abstract

Computer-based structural analysis of the ribosomal DNA intergenic spacer (IGS) from the mosquito Aedes albopictus revealed a potential to form strong and extensive secondary structures throughout a 4.7-kilobase (kb) region. The predicted stability of secondary structures was particularly high within a 3.15-kb region containing 17 tandem 201 base-pair subrepeats. Similarly strong secondary structure potential was also found when IGS subrepeats were analyzed from 17 phylogenetically diverse eukaryotes, including vertebrates, invertebrates, and plants. Conservation of higher-order structure potential in the IGS region of ribosomal DNA may reflect evolutionary and functional constraints on chromatin organization, transcriptional regulation of the ribosomal RNA genes, and/or transcript processing and stability.

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Year:  1992        PMID： 1474605     DOI： 10.1007/bf00160212

Source DB:  PubMed          Journal:  J Mol Evol        ISSN： 0022-2844            Impact factor:   2.395


  59 in total

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Journal:  Genes Dev       Date:  1990-07       Impact factor: 11.361

2.  Structural and transcriptional characterization of the external spacer of a ribosomal RNA nuclear gene from a higher plant.

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Journal:  Eur J Biochem       Date:  1988-03-15

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Journal:  Proc Natl Acad Sci U S A       Date:  1988-02       Impact factor: 11.205

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Journal:  Cold Spring Harb Symp Quant Biol       Date:  1987

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Authors:  M E Bianchi; M Beltrame; G Paonessa
Journal:  Science       Date:  1989-02-24       Impact factor: 47.728

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Authors:  B Sollner-Webb; J Tower
Journal:  Annu Rev Biochem       Date:  1986       Impact factor: 23.643

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Journal:  Nature       Date:  1978-11-16       Impact factor: 49.962

8.  Evolutionary divergence of promoters and spacers in the rDNA family of four Drosophila species. Implications for molecular coevolution in multigene families.

Authors:  D Tautz; C Tautz; D Webb; G A Dover
Journal:  J Mol Biol       Date:  1987-06-05       Impact factor: 5.469

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Authors:  D B Stern; E R Radwanski; K L Kindle
Journal:  Plant Cell       Date:  1991-03       Impact factor: 11.277

10.  Nucleolar transcription factor hUBF contains a DNA-binding motif with homology to HMG proteins.

Authors:  H M Jantzen; A Admon; S P Bell; R Tjian
Journal:  Nature       Date:  1990-04-26       Impact factor: 49.962
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  12 in total

1.  Nuclear ribosomal spacer regions in plant phylogenetics: problems and prospects.

Authors:  Péter Poczai; Jaakko Hyvönen
Journal:  Mol Biol Rep       Date:  2009-07-21       Impact factor: 2.316

2.  Dropout alignment allows homology recognition and evolutionary analysis of rDNA intergenic spacers.

Authors:  Seongho Ryu; Yoonkyung Do; David H A Fitch; Won Kim; Bud Mishra
Journal:  J Mol Evol       Date:  2008-03-25       Impact factor: 2.395

3.  Evolution of nuclear rDNA ITS sequences in the Cladophora albida/sericea clade (Chlorophyta).

Authors:  F T Bakker; J L Olsen; W T Stam
Journal:  J Mol Evol       Date:  1995-06       Impact factor: 2.395

4.  Structure and organization of the rDNA intergenic spacer in lake trout (Salvelinus namaycush).

Authors:  K M Reed; R B Phillips
Journal:  Chromosome Res       Date:  2000       Impact factor: 5.239

5.  Ribosomal DNA evolution at the population level: nucleotide variation in intergenic spacer arrays of Daphnia pulex.

Authors:  T J Crease
Journal:  Genetics       Date:  1995-12       Impact factor: 4.562

6.  Nucleotide sequence, structural organization and length heterogeneity of ribosomal DNA intergenic spacer in Quercus petraea (Matt.) Liebl. and Q. robur L.

Authors:  Natasa Bauer; Tomislav Horvat; Ivan Birus; Vedrana Vicić; Vlatka Zoldos
Journal:  Mol Genet Genomics       Date:  2008-12-04       Impact factor: 3.291

7.  Organization of nuclear ribosomal DNA and species-specific polymorphism in closely related Fraxinus excelsior and F. oxyphylla.

Authors:  G Jeandroz; F Faivre-Rampant; A Pugin; J Bousquet; A Bervillé
Journal:  Theor Appl Genet       Date:  1995-11       Impact factor: 5.699

8.  Cloning and analysis of a 6.8-kb rDNA intergenic spacer region of the European ash (Fraxinus excelsior L.).

Authors:  S Jeandroz; A Pugin; A Bervillé
Journal:  Theor Appl Genet       Date:  1996-06       Impact factor: 5.699

9.  Change in ribosomal DNA intergenic spacer-length composition in maize recurrent selection populations. 1. Analysis of BS13, BSSS, and BSCB1.

Authors:  T R Rocheford
Journal:  Theor Appl Genet       Date:  1994-07       Impact factor: 5.699

10.  Ribosomal intergenic spacer (IGS) length variation across the Drosophilinae (Diptera: Drosophilidae).

Authors:  Mariana Mateos; Therese A Markow
Journal:  BMC Evol Biol       Date:  2005-08-19       Impact factor: 3.260
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