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. 1989 Sep;9(9):4052-5.
doi: 10.1128/mcb.9.9.4052-4055.1989.

Cloning and disruption of Ustilago maydis genes

S Fotheringham  1 , W K Holloman
Affiliations

Cloning and disruption of Ustilago maydis genes

S Fotheringham et al. Mol Cell Biol. 1989 Sep.

Abstract

We have demonstrated that genes from Ustilago maydis can be cloned by direct complementation of mutants through the use of genomic libraries made in a high-frequency transformation vector. We isolated a gene involved in amino acid biosynthesis as an illustrative example and showed that integrative and one-step disruption methods can be used to create null mutations in the chromosomal copy of the gene by homologous recombination. The results of this investigation make it clear that one-step gene disruption will be of general utility in investigations of U. maydis, since simple, precise replacement of the sequence under study was readily achieved.

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