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Table 3 Densities of the most abundant SSR (tri- and tetranucleotide) types in different regions

From: Distinct patterns of SSR distribution in the Arabidopsis thalianaand rice genomes

  Trinucleotide* Tetranucleotide
Arabidopsis   
5'UTR AAG: 521.9 (74.3%) AAAG: 41.9 (39.6%)
  AAC: 48.1 (6.8%) AAAC: 15.8 (14.9%)
Exons AAG: 78.2 (35.8%) AAAG: 1 (28.9%)
  AGT: 27.7 (12.6%) AAAC: 0.7 (19.8%)
Introns AAG: 35.6 (39.1%) AAAC: 13.4 (22.8%)
  AAC: 23.1 (25.4%) AAAG: 12.9 (22%)
3'UTR AAG: 60.4 (35.2%) AAAG: 23.4 (27%)
  AAC: 33.2 (19.3%) AAAC: 21 (24.2%)
Genome AAG: 64.3 (42%) AAAT: 15.6 (32.5%)
  AAC: 18.7 (12.2%) AAAG: 9.3 (19.2%)
Rice   
5'UTR CCG: 731.3 (43.8%) CGAT: 70.6 (20.9%)
  CCT: 401.3 (24%) CCCT: 37.4 (11.1%)
Exons CCG: 218.4 (51.8%) CCCT: 1.1 (14.3%)
  CCT: 58.2 (13.8%) CCCG: 0.8 (10.7%)
Introns CCG: 74.2 (40.7%) AAAT: 5.3 (11.4%)
  CCT: 25.5 (14%) CGAT: 3.9 (8.5%)
3'UTR AAG: 23.5 (15.4%) CGAT: 18.8 (15.5%)
  CCG: 22.4 (14.6%) AATT: 12.5 (10.3%)
Genome CCG: 86.3 (44.7%) CGAT: 7.6 (11.9%)
  AAG: 25.1 (13%) AAAT: 5.9 (9.2%)
  1. Each of the repeat types contains all circular permutations of not only the sequence in question, but also of the complement of the sequence. The unit is per mega-base pairs. The percentage indicates how much percent of all repeats of this period are of this type. *Ten possible permutations; 32 possible permuations.