Figure 4.

Distribution of simple sequence repeats (SSRs) in Pinus tabuliformis expressed sequence tags (ESTs). Di-, tri-, tetra-, penta- and hexa-nucleotide repeats were analysed and their frequencies plotted as a function of the repeat number. The upper right histogram shows the distribution of the total number of SSRs in different classes.

Niu et al. BMC Genomics 2013 14:263   doi:10.1186/1471-2164-14-263
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