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Regulation of the timing of transposable element excision during maize development.

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  • المؤلفون: Levy AA;Levy AA; Walbot V
  • المصدر:
    Science (New York, N.Y.) [Science] 1990 Jun 22; Vol. 248 (4962), pp. 1534-7.
  • نوع النشر :
    Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S.
  • اللغة:
    English
  • معلومة اضافية
    • المصدر:
      Publisher: American Association for the Advancement of Science Country of Publication: United States NLM ID: 0404511 Publication Model: Print Cited Medium: Print ISSN: 0036-8075 (Print) Linking ISSN: 00368075 NLM ISO Abbreviation: Science Subsets: MEDLINE
    • بيانات النشر:
      Publication: : Washington, DC : American Association for the Advancement of Science
      Original Publication: New York, N.Y. : [s.n.] 1880-
    • الموضوع:
      DNA Transposable Elements/*genetics ; Zea mays/*genetics; Alleles ; Anthocyanins/biosynthesis ; Anthocyanins/genetics ; Cell Division ; Mutation ; Zea mays/growth & development
    • نبذة مختصرة :
      The ability of transposable elements (TEs) to insert into or excise out of a genetic locus can be regulated by genetic, environmental, and developmental factors. Tissue- or organ-specific activity of TEs is a frequent and well-characterized example of spatial, developmental regulation. Regulation of the timing of TE activity during ontogeny is less well understood. To analyze timing, TE-induced variegation was quantified in the aleurone of maize kernels, a tissue composed of only a single layer of cells, and sector sizes were assigned to specific cell divisions in aleurone development. Three TE families, Mu, Spm, and Ac/Ds, were studied at two genetic loci. It was found that the frequency of transposon excision changes drastically (up to 30-fold increase or equivalent decrease) during the proliferation of the aleurone. Moreover, these changes occur at the same cell divisions in all three TE families. These results suggest that the timing of TE excision during maize development can be controlled by the host.
    • Grant Information:
      GM 32422 United States GM NIGMS NIH HHS
    • الرقم المعرف:
      0 (Anthocyanins)
      0 (DNA Transposable Elements)
    • الموضوع:
      Date Created: 19900622 Date Completed: 19900731 Latest Revision: 20190618
    • الموضوع:
      20221208
    • الرقم المعرف:
      10.1126/science.2163107
    • الرقم المعرف:
      2163107