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

BMC Genomics

Table 1 Fisher exact tests for top hits to cyanobacteria relative to bacterial control groups.

Group	First hits	Adjusted ratio¹ cyano:control	P ²
P. ramorum as query
Cyanobacteria	155
Firmicutes	69	1.27	0.06
Actinobacteria	123	1.13	0.17
Proteobacteria	166	0.82	0.96
P. sojae as query
Cyanobacteria	155
Firmicutes	62	1.42	0.01
Actinobacteria	95	1.46	0.002
Proteobacteria	166	0.82	0.96
Thalassiosira as query
Cyanobacteria	263
Firmicutes	51	2.92	5.0e-15
Actinobacteria	45	5.27	5.8e-34
Proteobacteria	162	1.43	0.0003
Phaeodactylum as query
Cyanobacteria	231
Firmicutes	46	2.85	5.8e-13
Actinobacteria	63	3.29	3.3e-20
Proteobacteria	166	1.23	0.044

¹Ratios of top hits are based on scaled proportions of total dataset sizes.
²P values that are significant after adjustment for multiple tests are shown in bold.

ISSN: 1471-2164