Frequency of REP clusters within the SBW25 genome.

Data are the number of REPs occurring as clusters (from singlets to clusters of 12) in extragenic space compared to expectations from a null model based on the random assignment of 1,422 16-mers (to extragenic space) (see text).aObserved occurrences from the SBW25 genome.bExpected values (means and standard deviation) based on 10,000 simulations.cThe proportion of times the observed frequency was less than or equal to the expected value.dThe proportion of times the observed frequency was greater than or equal to the expected value.