Literature DB >> 24166644

Species-specific evolution of telomeric and rDNA repeats in the tobacco composite genome.

A Kovařik1, J Fajkus, B Koukalová, M Bezděk.   

Abstract

In order to investigate possible interactions between parental genomes in the composite genome of Nicotiana tabacum we have analyzed the organization of telomeric (TTTAGGG)n and ribosomal gene (rDNA) repeats in the progenitor genomes Nicotiana sylvestris and Nicotiana tomentosiformis or Nicotiana otophora. Telomeric arrays in the Nicotiana species tested are heterogeneous in length ranging from 20 to 200 kb in N. sylvestris, from 20 to 50 kb in N. tomentosiformis, from 15 to 100kb in N. otophora, and from 40 to 160kb in N. tabacum. The patterns of rDNA repeats (18S, 5.8S, 25S RNA) appeared to be highly homogeneous and speciesspecific; no parental rDNA units corresponding to N. sylvestris, N. tomentosiformis or N. otophora were found in the genome of N. tabacum by Southern hybridization. The results provide evidence for a species-specific evolution of telomeric and ribosomal repeats in the tobacco composite genome.

Entities:  

Year:  1996        PMID： 24166644     DOI： 10.1007/BF00224057

Source DB:  PubMed          Journal:  Theor Appl Genet        ISSN： 0040-5752            Impact factor:   5.699


  15 in total

1.  Comparison of cloned genes provides evidence for intergenomic exchange of DNA in the evolution of a tobacco glucan endo-1,3-beta-glucosidase gene family.

Authors:  C Sperisen; J Ryals; F Meins
Journal:  Proc Natl Acad Sci U S A       Date:  1991-03-01       Impact factor: 11.205

2.  Segregation in New Allopolyploids of Nicotiana. II. Discordant Ratios from Individual Loci in 6x (N. Tabacum x N. Sylvestris).

Authors:  D U Gerstel
Journal:  Genetics       Date:  1963-05       Impact factor: 4.562

3.  Segregation in New Allopolyploids of Nicotiana. I. Comparison of 6x (N. Tabacum x Tomentosiformis) and 6x (N. Tabacum x Otophora).

Authors:  D U Gerstel
Journal:  Genetics       Date:  1960-12       Impact factor: 4.562

4.  Conservation and divergence in multigene families: alternatives to selection and drift.

Authors:  G A Dover; D Tautz
Journal:  Philos Trans R Soc Lond B Biol Sci       Date:  1986-01-29       Impact factor: 6.237

5.  Molecular cloning and characterisation of the two homologous genes coding for nitrate reductase in tobacco.

Authors:  H Vaucheret; M Vincentz; J Kronenberger; M Caboche; P Rouzé
Journal:  Mol Gen Genet       Date:  1989-03

6.  Use of a genomic clone for ribosomal RNA from Brassica oleracea in RFLP analysis of Brassica species.

Authors:  R I Bennett; A G Smith
Journal:  Plant Mol Biol       Date:  1991-04       Impact factor: 4.076

7.  Novel class of rDNA repeat units in somatic hybrids between Nicotiana and Atropa.

Authors:  N V Borisjuk; V P Momot; Y Gleba
Journal:  Theor Appl Genet       Date:  1988-07       Impact factor: 5.699

8.  Characterization of the Nicotiana tabacum L. genome by molecular cytogenetics.

Authors:  A Kenton; A S Parokonny; Y Y Gleba; M D Bennett
Journal:  Mol Gen Genet       Date:  1993-08

9.  Pulsed-field gel electrophoresis analysis of higher-order chromatin structures of Zea mays. Highly methylated DNA in the 50 kb chromatin structure.

Authors:  M L Espinás; M Carballo
Journal:  Plant Mol Biol       Date:  1993-03       Impact factor: 4.076

10.  Characterization of a new family of tobacco highly repetitive DNA, GRS, specific for the Nicotiana tomentosiformis genomic component.

Authors:  B Gazdová; J Siroký; J Fajkus; B Brzobohatý; A Kenton; A Parokonny; J S Heslop-Harrison; K Palme; M Bezdĕk
Journal:  Chromosome Res       Date:  1995-06       Impact factor: 5.239
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  8 in total

Review 1.  Telomeres in evolution and evolution of telomeres.

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2.  The ups and downs of genome size evolution in polyploid species of Nicotiana (Solanaceae).

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3.  Phenotypic, genetic and genomic consequences of natural and synthetic polyploidization of Nicotiana attenuata and Nicotiana obtusifolia.

Authors:  S Anssour; T Krügel; T F Sharbel; H P Saluz; G Bonaventure; I T Baldwin
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4.  Chromatin features of plant telomeric sequences at terminal vs. internal positions.

Authors:  Eva Majerová; Terezie Mandáková; Giang T H Vu; Jiří Fajkus; Martin A Lysak; Miloslava Fojtová
Journal:  Front Plant Sci       Date:  2014-11-04       Impact factor: 5.753

5.  Characterization of Genomic Inheritance of Intergeneric Hybrids between Ascocenda and Phalaenopsis Cultivars by GISH, PCR-RFLP and RFLP.

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Review 6.  Personal Perspectives on Plant Ribosomal RNA Genes Research: From Precursor-rRNA to Molecular Evolution.

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7.  Rapid chromosome evolution in recently formed polyploids in Tragopogon (Asteraceae).

Authors:  K Yoong Lim; Douglas E Soltis; Pamela S Soltis; Jennifer Tate; Roman Matyasek; Hana Srubarova; Ales Kovarik; J Chris Pires; Zhiyong Xiong; Andrew R Leitch
Journal:  PLoS One       Date:  2008-10-09       Impact factor: 3.240

Review 8.  Telomere- and Telomerase-Associated Proteins and Their Functions in the Plant Cell.

Authors:  Petra Procházková Schrumpfová; Šárka Schořová; Jiří Fajkus
Journal:  Front Plant Sci       Date:  2016-06-28       Impact factor: 5.753
  8 in total

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