1887

Abstract

SUMMARY: Unique DNA sequences homologous to the linear DNA plasmid pRS64 were investigated in chromosomal DNAs of isolates belonging to anastomosis group 4 (AG-4) of the plant pathogenic fungus Chromosome-sized DNAs of isolates RI-64 and 1271 of AG-4 were separated into six bands by orthogonal-field-alternation gel electrophoresis and hybridized to a cloned segment of pRS64. A small chromosome-sized DNA band of approximately 1·1 Mb carried the sequences homologous to pRS64 DNA. Sequences homologous to pRS64 were also maintained within the chromosomal DNA of isolate 1271 of AG-4 which does not possess the plasmid. The plasmid showed no homology to the mitochondrial DNA of isolate 1271. The possibility that the linear plasmid pRS64 may act as a transposable genetic element is discussed.

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/content/journal/micro/10.1099/00221287-137-12-2817
1991-12-01
2019-10-16
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http://instance.metastore.ingenta.com/content/journal/micro/10.1099/00221287-137-12-2817
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