Abstract
Maize transposons were the first genetic elements in plants known to be subject to reversible inactivation. Early in the study of the Suppressor-mutator trans-posable element, McClintock identified cultures in which the “suppressor” and the “mutator” components of the element had a tendency to disappear and reappear simultaneously (McClintock 1957, McClintock 1958). In 1958 she wrote:
The Spm element originally present in the a m-12 cultures… did not always effect suppression of gene action in all parts of a plant or kernel. Mutations, however, occurred only in those parts of the plant or kernel in which gene expression was suppressed.
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Abbreviations
- Ac :
-
Activator
- bz :
-
bronze
- CaMV:
-
cauliflower mosaic virus
- Ds :
-
Dissociation
- DCR:
-
downstream control region
- dSpm :
-
transposition”defective Spm
- En :
-
Enhancer
- GUS:
-
β-glucuronidase
- I :
-
Inhibitor
- Mu :
-
Mutator
- ORF:
-
open reading frame
- sh :
-
shrunken
- Spm :
-
Suppressor-mutator
- Spm-c :
-
cycling Spm
- Spm-w :
-
weak Spm
- TIR:
-
terminal inverted repeat
- UCR:
-
upstream control region
- wx :
-
waxy
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Fedoroff, N.V., Chandler, V. (1994). Inactivation of Maize Transposable Elements. In: Paszkowski, J. (eds) Homologous Recombination and Gene Silencing in Plants. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-1094-5_15
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