Table 2

Results of Chi-square test for different datasets
Dataset Total pairs (POS | NEG) Num pairs (+,+) (POS | NEG) Num pairs (+,-) (POS | NEG) Num pairs (−,-) (POS | NEG) P-value
SP50L 40 | 91 5 | 4 9 | 16 26 | 71 0.161
SP50L-20p 39 | 91 8 | 3 5 | 17 26 | 71 0.005
UP50L 86 | 201 4 | 7 15 | 48 67 | 146 0.454
UP50L-20p 86 | 201 5 | 6 12 | 57 69 | 138 0.022
UP70L 63 | 106 6 | 6 15 | 27 42 | 73 0.636
UP70L-20p 63 | 106 4 | 9 14 | 32 45 | 65 0.412
UP70L-20p25s 62 | 105 4 | 9 22 | 31 36 | 65 0.685
UP70L-20p35s 64 | 107 5 | 9 16 | 30 43 | 68 0.888

The table lists the number of pairs belonging to the 3 categories obtained after tree topology comparison (+,+) (+,-) (−,-) for the variants of the datasets: 20p – MSA with maximum of 20% gapped columns. 20p25s – MSA containing a maximum of 20% gapped columns and a maximum of 25 sequences, 20p35s – MSA containing a maximum of 20% gapped columns and a maximum of 35 sequences. Statistically significant p-values are highlighted in bold.

Swapna et al.

Swapna et al. BMC Evolutionary Biology 2012 12:238   doi:10.1186/1471-2148-12-238

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