Fitness costs of symbiont switching using entomopathogenic nematodes as a model

Table 3 Non-cognate X. bovienii effect on nematode virulence

X. bovienii strains	S. intermedium (n = 36)^a			S. oregonense (n = 36)^a			S. puntauvense (n = 36)^a
X. bovienii strains	% Mortality^b	LT₅₀ (d)^c	Rank^d	% Mortality^b	LT₅₀ (d)^c	Rank^d	% Mortality^b	LT₅₀ (d)^c	Rank^d
None	0.0 ± 0	> 7	C	27.8 ± 0.07	> 7	BC	66.7 ± 0.08	4	BC
XbfFL	11.1 ± 0.05	> 7	C	22.2 ± 0.07	> 7	C	55.6 ± 0.08	3	AC
XbfM	0.0 ± 0	> 7	C	61.1 ± 0.08	4	B	80.6 ± 0.07	2	AB
XbfSN	0.0 ± 0	> 7	C	36.1 ± 0.08	> 7	BC	52.8 ± 0.08	4	C
Xbi	100.0 ± 0	4	A	50.0 ± 0.08	4	BC	77.8 ± 0.07	3	AC
Xbj	66.7 ± 0.08	4	AB	33.3 ± 0.08	> 7	BC	41.7 ± 0.08	> 7	AC
XbkBU	58.3 ± 0.08	4.5	B	41.7 ± 0.08	>7	BC	80.6 ± 0.07	2	A
XbkCA	0.0 ± 0	> 7	C	50.0 ± 0.08	7	BC	75.0 ± 0.07	3	AC
Xbo	0.0 ± 0	> 7	C	91.7 ± 0.05	2	A	58.3 ± 0.08	2	AC
Xbp	5.6 ± 0.04	> 7	C	50.0 ± 0.08	4	BC	94.4 ± 0.04	2	A

^aCognate symbiont data are bolded
^bPercent mortality after 1 week with standard error
^cLethal time to kill 50% of population reported as days
^dLetter-ranking generated from a Cox mixed effects model and post hoc Tukey test; see Additional file 1: Table S2 for summary of model

ISSN: 2730-7182