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Origin and diversity of mutants controlled by the Uq transposable element system in maize*

Published online by Cambridge University Press:  14 April 2009

Andy Pereira
Affiliation:
Department of Agronomy, Iowa State University, Ames, IA 50011
Peter A. Peterson
Affiliation:
Department of Agronomy, Iowa State University, Ames, IA 50011
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Summary

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Three transposable element mutations, displaying an unstable pheno-type at the A locus, were isolated from lines exhibiting Aberrant Ratio behaviour that originated from maize plants treated with plant RNA viruses. Each of these three unstable mutants is shown to belong to the Uq-ruq transposable element system. The two new mutants, along with the previously described a-ruq mutant, are nonautonomous in mutability control in that the control of mutability is governed by the segregating Uq regulatory element. By following the distribution of different Uq elements segregating in independently derived genetic lines and utilizing tests of allelism and linkage, certain lineages of Uq-element-containing lines are revealed.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1985

References

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