Table 1. Nucleotide biases of the total genome and protein-coding genes, and number of codon families unambiguously supporting the codon-anticodon adaptation hypothesis (NCAAH) and the wobble versatility hypothesis (NWVH) in each marine bivalve mitochondrial genome.
Species | GenBank Accession No. | Total | Protein-coding genes | NCAAH | NWVH | ||
GT (%) | AT skew | GC skew | 3rd position GT (%) | ||||
Crassostrea angulata | EU672832 | 57.69 | −0.13 | 0.20 | 61.29 | 0 | 16 |
Crassostrea ariakensis | EU672835 | 57.79 | −0.13 | 0.20 | 60.30 | 0 | 15 |
Crassostrea gigas | AF177226 | 57.70 | −0.13 | 0.20 | 61.18 | 0 | 16 |
Crassostrea hongkongensis | EU672834 | 57.28 | −0.11 | 0.21 | 59.28 | 0 | 14 |
Crassostrea sikamea | EU672833 | 57.85 | −0.13 | 0.21 | 61.77 | 0 | 15 |
Crassostrea virginica | AY905542 | 57.02 | −0.13 | 0.16 | 58.55 | 0 | 15 |
Crassostrea nippona | HM015198 | 56.61 | −0.10 | 0.19 | 58.99 | 0 | 12 |
Crassostrea iredalei | FJ841967 | 56.82 | −0.10 | 0.20 | 59.78 | 0 | 14 |
Saccostrea mordax | FJ841968 | 58.53 | −0.15 | 0.21 | 60.22 | 0 | 14 |
Ostrea denselamellosa | HM015199 | 58.34 | −0.15 | 0.19 | 60.39 | 0 | 16 |
Sinonovacula constricta | EU880278 | 63.59 | −0.23 | 0.36 | 70.48 | 0 | 17 |
Argopecten irradians | EU023915 | 62.58 | −0.25 | 0.31 | 66.40 | 1 | 17 |
Mimachlamys nobilis | FJ415225 | 63.75 | −0.25 | 0.31 | 69.82 | 1 | 18 |
Chlamys farreri | EU715252 | 62.34 | −0.18 | 0.34 | 67.42 | 1 | 18 |
Placopecten magellanicus | DQ088274 | 66.57 | −0.27 | 0.40 | 79.54 | 2 | 18 |
Meretrix petechialis | EU145977 | 65.02 | −0.26 | 0.39 | 72.73 | 0 | 17 |
Meretrix meretrix | NC_013188 | 64.89 | −0.25 | 0.39 | 72.45 | 0 | 17 |
Acanthocardia tuberculata | DQ632743 | 58.85 | −0.18 | 0.17 | 58.51 | 0 | 16 |
Hiatella arctica | DQ632742 | 59.80 | −0.15 | 0.29 | 61.12 | 0 | 14 |
Lucinella divaricata | EF043342 | 63.44 | −0.24 | 0.33 | 64.98 | 0 | 17 |
Loripes lacteus | EF043341 | 63.29 | −0.23 | 0.32 | 66.09 | 0 | 19 |
Venerupis philippinarum F | AB065375 | 60.08 | −0.13 | 0.36 | 60.31 | 0 | 16 |
Venerupis philippinarum M | AB065374 | 59.99 | −0.15 | 0.31 | 62.96 | 0 | 16 |
Mytilus trossulus M | DQ198225 | 56.47 | −0.09 | 0.20 | 54.77 | 0 | 14 |
Mytilus galloprovincialis M | AY363687 | 56.22 | −0.08 | 0.20 | 56.24 | 0 | 14 |
Mytilus edulis M | NC_006161 | 58.06 | −0.11 | 0.25 | 53.25 | 0 | 14 |
Mytilus trossulus F | DQ198231 | 58.09 | −0.11 | 0.25 | 57.55 | 0 | 15 |
Mytilus galloprovincialis F | NC_006886 | 58.02 | −0.11 | 0.24 | 57.74 | 0 | 15 |
Mytilus edulis F | AY823624 | 56.07 | −0.08 | 0.19 | 57.98 | 0 | 15 |
Total | 5 | 454 |