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Table 1 Fitness parameters (± 1 st. error) estimated for three phage strains

From: Adaptive regulatory substitutions affect multiple stages in the life cycle of the bacteriophage ϕX174

Strain/Temp

Attachment1

Ejection2

Eclipse3

VA rate4

Latent per.3

Lysis rate5

Burst size6

Fitness7

Anc/37C

31.8 ± 0.16

2.2 ± 0.30

8.4 ± 0.10*

4.9 ± 0.2

12.4 ± 0.04

13.6 ± 0.57*

156.2 ± 12*

20.9 ± 0.1*

mut323/37C

31.8 ± 0.12

2.0 ± 0.13

9.8 ± 0.15

5.0 ± 0.2

12.9 ± 0.28

6.6 ± 0.29

79.1 ± 2.7

19.9 ± 0.1

mut324/37C

31.7 ± 0.18

2.0 ± 0.23

9.7 ± 0.15

4.4 ± 0.2

12.5 ± 0.03

8.3 ± 0.38

96.4 ± 3.7

17.9 ± 0.3

Anc/42C

30.4 ± 0.03

1.7 ± 0.16

8.5 ± 0.14*

3.1 ± 0.1

11.2 ± 0.08

1.7 ± 0.12*

17.9 ± 0.7*

9.2 ± 0.2*

mut323/42C

30.3 ± 0.03

1.6 ± 0.34

9.6 ± 0.17

3.3 ± 0.2

11.2 ± 0.21

3.6 ± 0.25

35.9 ± 1.4

16.9 ± 0.4

mut324/42C

30.4 ± 0.04

1.6 ± 0.10

9.4 ± 0.13

3.0 ± 0.2

11.0 ± 0.27

4.1 ± 0.14

43.5 ± 1.1

14.1 ± 0.7

  1. 1Time (sec) at which 50% of phages growing in phage LB are attached.
  2. 2Time (min) at which 50% of phages incubated in starvation buffer are ejected.
  3. 3Earliest time (min) at which the number of phages doubles relative to the previous time point.
  4. 4Fold increase in intracellular virions per minute.
  5. 5Virions released per minute.
  6. 6Number of phages at 24 (37°C) or 22 (42°C) minutes post-infection.
  7. 7Doublings per hour, from [1].
  8. *Statistically significant difference (p < 0.05) among phages at indicated temperature.
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BMC Ecology and Evolution

ISSN: 2730-7182

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