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. 2005 Aug 16;33(14):4626–4638. doi: 10.1093/nar/gki775

Table 1.

Ancestral duplications among eukaryotic genes of different inferred origins

Inferred origin Number of KOGs Number of clusters P(χ2) Comment
Archaeal 280 153 0.49 No significant difference from the general distribution
Bacterial 923 415 0.67 No significant difference from the general distribution
Archaeal or bacterial 239 117 0.02 No significant difference from the general distribution
LUCA 1003 407 1.8 × 10−21 Excess of duplications
Eukaryotic 1692 1058 6 × 10−12 Deficit of duplications