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A tandem array of 5S ribosomal RNA genes in Pythium irregulare
A Belkhiri1, H Intengan, G R Klassen
1Department of Microbiology, University of Manitoba, Winnipeg, Canada.
Gene
|February 28, 1997
Abstract:
The 5S ribosomal RNA genes of the oomycete Pythium irregulare exist in tandem arrays unlinked to the rDNA repeat unit. A clone with a 9.2-kb insert containing an array of 5S genes was identified in a lambda genomic library and was characterized by restriction mapping and partial sequencing. The array consisted of 9 apparently identical 5S genes and their spacers in tandem, followed by a diverged 5S-like sequence that is likely to be a pseudogene. This gene arrangement, although almost universal in plants and animals, is rare in fungi and protists.