A Genome-Wide Identification of Genes Undergoing Recombination and Positive Selection in Neisseria
Table 2
Association between COGs and descriptive variables.
Functional category
Number of genes analyzed
Bonferroni-corrected value for one-sided test for association between genes in a given COG and(1)
>nt diversity
>Number of Informative sites
>Codon bias(2)
<Codon bias(2)
>dS
>dN
Energy production and conversion
85
<0.001
Nucleotide metabolism and transport
37
0.03
Translation, ribosomal structure, and biogenesis
110
<0.001
0.03
Replication, recombination, and repair
70
<0.001
<0.001
0.03
Cell wall/membrane/envelope biogenesis
75
0.002
Function unknown
93
0.023
0.03
Intracellular trafficking, secretion and vesicular transport
29
0.020
0.039
Not in COGs
47
0.040
<0.001
“>” or “<” indicates the direction of the one-sided tests (i.e. “>Codon bias” shows Bonferroni-corrected -values for associations between genes in a given COG and higher codon bias as compared to the genes in other COGs, and “<Codon bias” represents a contrast tendency). Tests for codon bias were performed using Nc values (a lower Nc means increased codon bias).
