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Patterns of Diversity in Populations of the Turfgrass Pathogen Colletotrichum cereale as Revealed by Transposon Fingerprint Profiles

^a Dep. of Plant Biology and Pathology, Rutgers Univ., New Brunswick, NJ 08901-8520
^b Dep. of Plant Pathology, The Pennsylvania State Univ., University Park, PA 16802

View larger version (18K): [in this window] [in a new window]   Figure 1. Map of Pennsylvania, illustrating the origination of the Colletotrichum cereale isolates used in this study. The number of isolates from each location is listed in parentheses after the location name.

View larger version (20K): [in this window] [in a new window]   Figure 2. Multilocus tree estimated through Bayesian phylogenetic analysis of three protein coding genes supporting the division of the Colletotrichum cereale isolates into two main lineages, clades A and B (–ln likelihood = 3430.89).

View larger version (50K): [in this window] [in a new window]   Figure 3. Southern blot hybridizations of HindIII-digested genomic DNA from a representative sample of Colletotrichum cereale clade A and B isolates using four transposon sequences as the probe. (A) Collect1I29 DNA transposon, (B) Ccret1DBP6 retrotransposon, (C) Ccret2DBP16 retrotransposon, (D) Ccret2POL2/3 (from clone A15) retrotransposon.

View larger version (34K): [in this window] [in a new window]   Figure 4. A schematic tree showing the presence or absence of the transposons evaluated in this study. (RIP = repeat-induced point.)