Figure 2

ORF placement of SSRs. Paired columns show observed and expected frequencies of SSRs (left and right columns, respectively) within each ORF category and are further subdivided by data partitioning showing pooled data, dinucleotide SSRs only, trinucleotide SSRs only, and tetranucleotide SSRs only presented left to right within each panel. Panel A shows distributions for SSRs from BAC library sequence; panel B shows distributions for SSRs from EST library sequence. Observed and expected frequencies are generally in agreement within BAC library sequence, but diverge in EST library sequence, primarily among tri- and tetranucleotide repeats.