Table 3

Summary of evolutionary rate and positive selection analyses

Gene family

Lineage

dN/dS1

Positive

selection2

PSS3


Serine peptidase

Bd

0.46

+

30, 19*, 14**

bacteria

0.01

-

-


DXX-DAB

Bd

0.70

+

43, 8*

oomycetes

0.40

-

-


DFB

Bd

0.64

+

90, 21*, 11**

oomycetes

0.27

-

-


DX8

Bd

0.88

+

101, 18*, 8**

oomycetes

0.52

+

41, 12*, 5**


DXX-DXV

Bd

0.65

+

114, 2*

oomycetes

0.59

+

27, 16*, 12**


DXX-DHA

Bd

0.78

+

61, 18*, 8**

oomycetes

0.63

+

28, 11*, 4**


DFA-DDC

Bd

0.69

+

36, 17*, 8**

oomycetes

0.26

-

-


DN17

Bd

0.50

+

25, 8*, 3**

oomycetes

0.47

+

29, 13*, 9**


1The dN /dS ratio average across all sites and lineages under PAML model M0.

2"+" signs indicate that positive selection acted on the evolution of these genes, while "-" signs indicate that no positive selection was identified. These results were obtained based on the likelihood ratio tests of three site-specific models (Additional file 3).

3PPS indicates positively selected sites (ω > 1 under PAML model M2a). The number of amino acid residues with the posterior probability (PP) of positive selection greater than 0.05 is shown. **: PP > 0.99; *: PP > 0.95.

Sun et al. BMC Evolutionary Biology 2011 11:195   doi:10.1186/1471-2148-11-195

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