Types and frequency of occurrence of simple sequence repeats (SSRs) in cDNAs of bamboo, rice, and Arabidopsis. (A) Percentage of SSRs in different period sizes. Relative abundance of different types of SSRs is classified according to repeat length. (B) Frequency of SSR sequences in different types. Relative frequency of 14 most abundant repeat sequences of SSRs is shown. (C) Frequency and position of mono-, di-, and tri-nucleotide SSRs. Frequency distribution of mono-, di-, and tri-nucleotide SSRs are calculated along the predicted transcribed regions.