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Table 5 Statistical significance of the obtained AI values. A paired students t-test was performed for the constrained data set to test whether the observed differences between the average identity of pair wise comparisons of Mesostigma expressed genes with the indicated organismal data set are significant. Differences are considered significant when p is < 0.0071 (0.05/8 Bonferroni adjustment [22]).

From: EST analysis of the scaly green flagellate Mesostigma viride (Streptophyta): Implications for the evolution of green plants (Viridiplantae)

  Variable1 No. of genes shared2 mean3 standard deviation4 t-value Degrees of freedom ρ
1 Mesostigma/Chlamydomonas G Mesostigma/Chlamydomonas E 244 0.652992 0.652992 0.149868 0.151255 -0,03107 243 0.975239
2 Mesostigma/Chlamydomonas G Mesostigma/Physcomitrella E 301 0.649934 0.674618 0.149292 0.153641 -3.24578 300 0.001304
3 Mesostigma/Chlamydomonas G Mesostigma/Arabidopsis G 314 0.648057 0.677994 0.148512 0.140940 -4.44025 313 0.000012
4 Mesostigma/Chlamydomonas G Mesostigma./Oryza G 314 0.648057 0.670382 0.148512 0.148384 -3.15371 313 0.001768
5 Mesostigma/Physcomitrella E Mesostigma/Arabidopsis G 302 0.675364 0.681159 0.153933 0.140567 -135783 301 0.175535
6 Mesostigma/Physcomitrella E Mesostigma./Oryza G 302 0.675364 0.673311 0.153933 0.147624 0,43158 301 0.666355
7 Mesostigma/Arabidopsis G Mesostigma./Oryza G 314 0.678730 0.671175 0.141321 0.148813 2.480053 313 0.013660
  1. 1 Compared data sets E = ESTs, G = Genome. 2 No. of genes shared between the compared data sets. 3 AI recalculated on the basis of the genes shared between the compared datasets. 4 Standard deviation of 3.