Borovkov A Y, McClean P E
Department of Crop and Weed Sciences, North Dakota State University, Fargo 58105.
Gene. 1993 Feb 14;124(1):127-30. doi: 10.1016/0378-1119(93)90772-u.
A 747-bp tandem repeat element from the genome of the fungus Plasmopara halstedii, the causal agent of downy mildew of sunflower, was cloned and analyzed. The clone can be used as a probe to distinguish races of the pathogen. Sequence analysis of a copy of this element revealed the presence of 103 direct repeats of 6 bp or greater and two potential ORFs. This tandemly repeated element consists of four subunits that may have evolved as a result of several unequal crossing-over events.