Table 2

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

Group

1st hits, reds not 2nd

1st hits, reds 2nd

Scaled ratio cyano:other1

P2


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. sojaeas 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


Thalassiosiraas 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


1Ratios are scaled to absolute number of first hits to avoid biases related to relative sizes of groups' genomic data sets.

2P values shown in bold are significant at experiment-wise a value of 0.05, adjusted to reflect multiple tests.

Stiller et al. BMC Genomics 2009 10:484   doi:10.1186/1471-2164-10-484

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