Display Settings:   Send to:  Choose Destination Phytopathology.
2003 Jul;93(7):874-80. doi: 10.1094/PHYTO.2003.93.7.874.
Diversity of Epidemic Populations of Gibberella zeae from Small
Quadrats in Kansas and North Dakota.   ABSTRACT Gibberella zeae
(anamorph Fusarium graminearum) causes Fusarium head blight
(FHB) of wheat and barley and has been responsible for several
billion dollars of losses in the United States since the early
1990s. We isolated G. zeae from the top, middle, and bottom
positions of wheat spikes collected from 0.25-m(2) quadrats
during severe FHB epidemics in a single Kansas (KS) field (1993)
and in a single North Dakota (ND) field (1994). Three amplified
fragment length polymorphism (AFLP) primer pairs were used to
resolve 94 polymorphic loci from 253 isolates. Members of a
subset of 26 isolates also were tested for vegetative
compatibility groups (VCGs). Both methods indicated high levels
of genotypic variability and identified the same sets of
isolates as probable clones. The mean num