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Molecular structure of rDNA repeat unit in Magnaporthe grisea
1Laboratory of Applied Microbiology, Graduate School of Agriculture, Hokkaido University, Sapporo, Japan.
Bioscience, Biotechnology, and Biochemistry
|September 19, 2000
Abstract:
The 8-kb repeat unit of M. grisea rRNA-encoding DNA (rDNA) was cloned as three subclones, pM50, pM21, and pM86. Nucleotide sequencing of these subclones uncovered the structure of an rDNA repeat unit similar to those of other ascomycetes. The intergenic spacer (IGS) of the rDNA cistron contained a repetitive (R) region, which was rich in two kinds of short tandemly repeated elements.