Literature DB >> 10231389

The suppressor-mutator element and the evolutionary riddle of transposons.

N V Fedoroff1.   

Abstract

This review focuses on the epigenetic control of the maize Suppressor-mutator (Spm) transposon and the evolutionary origin of epigenetic mechanisms. Methylation of the Spm promoter prevents transcription and transposition, and the methylation of the adjacent GC-rich sequence renders the inactive state heritable. Spm encodes an epigenetic activator, TnpA, one of the two Spm-encoded transposition proteins. TnpA can reactivate an inactive, methylated Spm both transiently and heritably, and it is also a transcriptional repressor of the unmethylated Spm promoter. Features common to epigenetic mechanisms in general suggest that they originated as a means of decreasing the recombinogenicity of duplicated sequences.

Entities:  

Keywords:  Non-programmatic

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Year:  1999        PMID： 10231389     DOI： 10.1046/j.1365-2443.1999.00233.x

Source DB:  PubMed          Journal:  Genes Cells        ISSN： 1356-9597            Impact factor:   1.891


  10 in total

1.  Alternative transcription initiation sites and polyadenylation sites are recruited during Mu suppression at the rf2a locus of maize.

Authors:  Xiangqin Cui; An-Ping Hsia; Feng Liu; Daniel A Ashlock; Roger P Wise; Patrick S Schnable
Journal:  Genetics       Date:  2003-02       Impact factor: 4.562

2.  Survival of Tdc transposable elements of the En/Spm superfamily in the carrot genome.

Authors:  Y Itoh; M Hasebe; E Davies; J Takeda; Y Ozeki
Journal:  Mol Genet Genomics       Date:  2003-02-12       Impact factor: 3.291

3.  The hAT -like DNA transposon DodoPi resides in a cluster of retro- and DNA transposons in the stramenopile Phytophthora infestans.

Authors:  A M V Ah Fong; H S Judelson
Journal:  Mol Genet Genomics       Date:  2004-04-20       Impact factor: 3.291

4.  Robertson's Mutator transposons in A. thaliana are regulated by the chromatin-remodeling gene Decrease in DNA Methylation (DDM1).

Authors:  T Singer; C Yordan; R A Martienssen
Journal:  Genes Dev       Date:  2001-03-01       Impact factor: 11.361

5.  A PCR-based assay to detect En/Spm-like transposon sequences in plants.

Authors:  C Staginnus; B Huettel; C Desel; T Schmidt; G Kahl
Journal:  Chromosome Res       Date:  2001       Impact factor: 5.239

6.  Suppressors of transcriptional transgenic silencing in Chlamydomonas are sensitive to DNA-damaging agents and reactivate transposable elements.

Authors:  Byeong-ryool Jeong Br; Dancia Wu-Scharf; Chaomei Zhang; Heriberto Cerutti
Journal:  Proc Natl Acad Sci U S A       Date:  2002-01-08       Impact factor: 11.205

7.  En/Spm-like transposons in Poaceae species: transposase sequence variability and chromosomal distribution.

Authors:  Ahu Altinkut; Olga Raskina; Eviatar Nevo; Alexander Belyayev
Journal:  Cell Mol Biol Lett       Date:  2006       Impact factor: 5.787

8.  Activity of the En/Spm-like transposons in meiosis as a base for chromosome repatterning in a small, isolated, peripheral population of Aegilops speltoides Tausch.

Authors:  Olga Raskina; Alexander Belyayev; Eviatar Nevo
Journal:  Chromosome Res       Date:  2004       Impact factor: 4.620

9.  A novel Snf2 protein maintains trans-generational regulatory states established by paramutation in maize.

Authors:  Christopher J Hale; Jennifer L Stonaker; Stephen M Gross; Jay B Hollick
Journal:  PLoS Biol       Date:  2007-10-16       Impact factor: 8.029

10.  Molecular Characterization and Expression Profile Analysis of Heat Shock Transcription Factors in Mungbean.

Authors:  Shuai Li; Runhao Wang; Hanqi Jin; Yanhua Ding; Chunmei Cai
Journal:  Front Genet       Date:  2019-01-11       Impact factor: 4.599
  10 in total

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