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Science 27 June 1980:
Vol. 208. no. 4451, pp. 1457 - 1459
DOI: 10.1126/science.208.4451.1457
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Articles

Probing the Component Structure of a Maize Gene with Transposable Elements

JERRY L. KERMICLE 1

1 Laboratory of Genetics, University of Wisconsin, Madison 53706

Three instances of R gene instability were found in maize stocks carrying the controlling elements Dissociation (Ds) and Modulator (Mp). In each, Ds or a Ds-like element had transposed to R, inhibiting kernel pigmentation irregularly. When Mp was removed from the genome, R expression stabilized at lowt to intermediate levels. Strong pigmenting action was restored through recombination in heterozygotes of the three new forms with an R allele that specifies only plant pigmentation. The sites of Ds insertion mapped distal to the region that specifies seed versus plant expression. The evidence suggests that an R functional unit consists of one component that both governs tissue-specific expression and another that is common to alleles of different tissue-specific activities.

Revised on October 22, 1979


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
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Gene Conversion Within Regulatory Sequences Generates Maize r Alleles With Altered Gene Expression.
Y. Li, J. P. Bernot, C. Illingworth, W. Lison, K. M. Bernot, W. B. Eggleston, K. J. Fogle, J. E. DiPaola, J. Kermicle, and M. Alleman (2001)
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E. L. Walker and T. Panavas (2001)
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Ac Insertion Site Affects the Frequency of Transposon-Induced Homologous Recombination at the Maize p1 Locus.
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Genetics 156, 2007-2017
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Genome Rearrangements by Nonlinear Transposons in Maize.
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Molecular Consequences of Ds Insertion Into and Excision From the Helix-Loop-Helix Domain of the Maize R Gene.
Y. Liu, L. Wang, J. L. Kermicle, and S. R. Wessler (1998)
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Science. ISSN 0036-8075 (print), 1095-9203 (online)