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Table 7 Putative Single Nucleotide Polymorphism (SNP) identification from the GigasDatabase.

From: Generation and analysis of a 29,745 unique Expressed Sequence Tags from the Pacific oyster (Crassostrea gigas) assembled into a publicly accessible database: the GigasDatabase

SNP Type

Number

Percentage

Non Synonymous

1344

17.85

Synonymous

5097

67.69

Indel

1089

14.46

Total

7530

100

A/G

1860

36.49

T/C

1494

29.31

A/C

551

10.81

A/T

284

5.57

T/G

381

7.47

G/C

518

10.16

TriNucleotides

9

0.19

Total

7530

100

  1. Indels are Insertions and Deletions detected in the sequences with a range of 1 to 13 bases
  2. Two distinct subcategories of SNP have been identified:
  3. - Transition (ts) e.g. A⇔G; T⇔C that are mutations between two puric bases (A/G) or between two pyrimidic bases (C/T)
  4. - Transversion (tv) e.g. A⇔C; A⇔T; T⇔G; G⇔C that are mutations between puric and pyrimidic bases
  5. Trinucleotides are polymorphic sites that show three alleles at the same locus.