Fig. 5
From: No evidence for schistosome parasite fitness trade-offs in the intermediate and definitive host
Differential impact of HS and LS parasites on snail host life history traits and physiology. (A) We did not detect significant differences in the survival of the infected snails between populations (Bg26 or Bg121) or between infection groups (HS or LS schistosome parasites selected lines). (B, C) There was a strong impact of the infection group on the snail physiological parameters. (B) laccase-like activity (Welsh t-test: Cross A: F3-Bg26 infected with HS vs. LS, t = −11.126, df = 16.846, P = 3.50 × 10–9; F3-Bg121 infected with HS vs. LS, t = −9.3019, df = 12.838, P = 4.57 × 10–7; Cross B: F3-Bg26 infected with HS vs. LS, t = −11.329, df = 13.79, P = 2.28 × 10–8; F3-Bg121 infected with HS vs. LS, t = −9.6534, df = 25.15, P = 6.11 × 10–11) and (C) hemoglobin rate (Welsh t-test: Cross A: F3-Bg26 infected with HS vs. LS, t = −7.8325, df = 12.101, P = 4.429 × 10–6; F3-Bg121 infected with HS vs. LS, t = −6.4313, df = 12.051, P = 3.185 × 10–5; Cross B: F3-Bg26 infected with HS vs. LS, t = −6.0988, df = 11.636, P = 6.099 × 10–5; F3-Bg121 infected with HS vs. LS, t = −7.3274, df = 14.353, P = 3.238 × 10–6). Snails infected with HS schistosome parasites lines consistently exhibit lower laccase activity and hemoglobin rates compared to those infected with LS parasite lines. NS: No significant difference between the considered groups; *P < 0.05; **P ≤ 0.01; ***P ≤ 0.001