Roles of three putative salmon louse (Lepeophtheirus salmonis) prostaglandin E2 synthases in physiology and host–parasite interactions

Table 2 Overview of interference RNA experiment injecting preadult 2 female salmon louse (Lepeophtheirus salmonis)

RNAi experiments^a	Expression (% of control)			Recovery^b	Length^c (mm) ± SD
RNAi experiments^a	LsMGST1l	LsPGES2	LsPGES3L	Recovery^b	Total	Egg string
Control	100	100	100	14/30	1.10 (± 0.05)	2.19 (± 0.30)
RNAi1	n/a	60	58	20/30	1.13 (± 0.06)	2.27 (± 0.27)
RNAi2	37	63	48	20/30	1.12 (± 0.03)	2.24 (± 0.20)

RNAi, RNA interference; SD standard deviation
Gene expression and morphological measurements were performed as lice developed to the adult stage
^aKnockdown was performed in females treated with dsRNA fragments targeting LsPGES2 and LsPGES3L (RNAi1 group), and in females treated with dsRNA fragments targeting LsMGST1l, LsPGES2 and LsPGES3L. (RNAi2 group)
^bRecovery indicates the number of adult females found on fish compared to the number of injected preadult 2 females placed on fish
^cTotal length is the average length of the recorded females, including cephalothorax, genital segment and abdomen. Egg string length is the average length of egg strings carried by gravid females (all females carried eggs)

ISSN: 1756-3305