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The Uq controlling-element system in maize

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Summary

A new two-element controlling element system, the Ubiquitous (Uq) system was found among the progeny of stocks infected with Wheat Streak Mosaic Virus (WSMV). Uq interacts with a-ruq to induce variegation at the a locus. Uq induces changes at the a-ruq allele leading to the loss of the ruq element. One derivative type is colorless and a second, is pale-colored and both have lost the ability to respond to Uq. Uq like other controlling elements in maize transposes, however in the one case identified, a duplication of Uq occurred. Unlike most systems, Uq shows a dosage effect. It is discussed how several different kinds of treatment could induce the transposability of maize elements leading to the insertion of these elements at a locus, thus leaving the functioning of such a locus under the control of a controlling element system.

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Authors and Affiliations

  1. Agronomy Department, Iowa State University, 50011, Ames, IA, USA

    Peter Friedemann & Peter A. Peterson

Authors
  1. Peter Friedemann
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  2. Peter A. Peterson
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Additional information

Communicated by H. Saedler

Journal Paper No. J-10585 of the Iowa Agriculture and Home Economics Experiment Station, Ames, Iowa, Project No. 2381

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Friedemann, P., Peterson, P.A. The Uq controlling-element system in maize. Molec. Gen. Genet. 187, 19–29 (1982). https://doi.org/10.1007/BF00384378

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  • DOI: https://doi.org/10.1007/BF00384378

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