Table 1

Results of infection trials, spore activation tests and attachment-tests.

Infection trial

Spore activation

Attachment-test

(attached out of five)


Clones of D. magna

Pasteuria

C19

C1

C14

C19

C1

C14

C19

C1

C14

Origin


HO1

Hungary

R

R

R

Yes

Yes

Yes

0

0

0

HO2

Hungary

S

S

S

Yes

Yes

Yes

5

5

5

HO3

Hungary

R

R

R

Yes

Yes

Yes

0

0

0

M5

Belgium

R

R

R

Yes

Yes

Yes

0

0

0

M10

Belgium

S

S

S

Yes

Yes

Yes

5

5

5

Iinb1*

Germany*

R

R

R

Yes

Yes

Yes

0

0

0

Mu12

Germany

R

R

R

Yes

Yes

Yes

0

0

0

DG-1-106

Germany

S

R

R

Yes

Yes

Yes

5

0

0

AL144

Finland

R

S

S

Yes

Yes

Yes

0

5

5

Xinb3*

Finland*

S

R

R

Yes

Yes

Yes

5

0

0

XI*

Finland*

R

R

R

Yes

Yes

Yes

0

0

0

Xfa6*

Finland*

S

R

R

Yes

Yes

Yes

5

0

0

Kela-39-09

Finland

R

S

S

Yes

Yes

Yes

0

5

5

Kela-18-10

Finland

S

R

R

Yes

Yes

Yes

5

0

0


We tested all combinations of three Pasteuria ramosa clones (C19, C14, C1) with 14 Daphnia magna clones. Infection trials results are defined by exposing Daphnia to the parasites and determining the infection status after 20 days. Resistant means that none of the replicates were infected. Activation was determined by observing spores in the gut of the host with a sombrero-like shape. R means that the host clone is totally resistant to the concerned parasite clone. S means that the host clone is susceptible to the concerned parasite clone. Yes means that the spores were activated.

Labcross: 'Iinb1' is 'Mu11' (Belgium) selfed once; 'Xinb3' is 'X' (Finland) selfed three times; 'Xfa6' is 'AL144' selfed three times and crossed with 'Xinb3'; 'XI' is a cross between 'Iinb1' and 'Xinb3'.

Duneau et al. BMC Biology 2011 9:11   doi:10.1186/1741-7007-9-11

Open Data