Table 2

Parameter values of model fits

model A

model B

model C

model D


θ

θ0

β

θ1 (λ1)

θ2 (λ2)

θ1 (λ1)

θ2 (λ2)


B. anthracis

0.10

6.9

490

0.30 (0.41)

0 (0.59)

∞ (0.03)

0.06 (0.97)

E. coli

0.44

2.1

17

1.77 (0.46)

0 (0.54)

12 (0.15)

0.15 (0.85)

Staph. aureus

0.24

0.87

10

0.92 (0.42)

0 (0.58)

14 (0.07)

0.12 (0.93)

Strep. pneumonia

0.48

1.94

17

1.47 (0.53)

0 (0.47)

41 (0.08)

0.20 (0.92)

Strep. pyogenes

0.33

1.93

23

0.57 (0.68)

0 (0.32)

40 (0.06)

0.20 (0.94)

N. meningitidis

0.50

3.5

30

1.72 (0.52)

0 (0.48)

15 (0.16)

0.19 (0.84)


We determined for each of the four models A, B, C and D the parameters that minimize the distance Δ, see Eq. (6), between the empirical and the theoretical gene frequency distribution. Here we report the gene transfer parameter θ of the model A fit, the gene transfer parameter θ0 and the population growth parameter β of the model B fit, the genome fractions λ1 and λ2, and the gene transfer parameter θ1 of the model C fit, and the genome fractions λ1 and λ2, and the gene transfer parameters θ1 and θ2 of the model D fit.

Haegeman and Weitz BMC Genomics 2012 13:196   doi:10.1186/1471-2164-13-196

Open Data