Presence of Several Plasmids in the Fungus , and Homologies with the Linear Plasmid pAl Free

Abstract

DNA analysis of several genetically unstable strains of the fungus revealed the presence of at least seven different plasmids. These plasmids ranged from 2 to 20 kb in size, and showed homology to one of them, pA 1. In 18 stocks directly isolated from nature, two-thirds harboured plasmids ranging from 3 to 17 kb. Plasmids with homology to pAl had similar molecular masses (about 8·5 kb). A possible mechanism of plasmid formation from chromosomal DNA is discussed.

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1987-02-01
2024-03-28
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