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Table 2 Fisher exact tests for signal from cyanobacterial genes suggesting a red ancestry.

From: Are algal genes in nonphotosynthetic protists evidence of historical plastid endosymbioses?

Group 1st hits, reds not 2nd 1st hits, reds 2nd Scaled ratio cyano:other1 P 2
   P. ramorum as query
Cyanobacteria 152 3   
Firmicutes 68 1 1.33 0.64
Actinobacteria 120 3 0.8 0.76
Proteobacteria 166 5 0.67 0.82
   P. sojae as query
Cyanobacteria 151 4   
Firmicutes 60 2 0.79 0.77
Actinobacteria 94 1 2.6 0.37
Proteobacteria 163 3 1.4 0.46
   Thalassiosira as query
Cyanobacteria 232 31   
Firmicutes 51 0 NA 0.003
Actinobacteria 45 0 NA 0.006
Proteobacteria 160 2 10.3 0.00002
   Phaeodactylum as query
Cyanobacteria 199 32   
Firmicutes 45 1 7.3 0.014
Actinobacteria 62 1 10.1 0.002
Proteobacteria 162 4 6.44 0.00003
  1. 1Ratios are scaled to absolute number of first hits to avoid biases related to relative sizes of groups' genomic data sets.
  2. 2P values shown in bold are significant at experiment-wise a value of 0.05, adjusted to reflect multiple tests.