Fig. 8: Histology and rab7 correlation analysis.

a Scatterplots show rab7 rlog transformed expression on the x-axis plotted against the histology phenotype on the y-axis. Correlation coefficients and P-values are provided for the linear trendline (black), and the gray area represents a 95% confidence interval. b Boxplots show the histology phenotypes plotted by disease status: C Control (n = 25), E Exposed (no lesion, n = 8), and I Infected (with lesion, n = 19). P-values represent TukeyHSD results following one-sided ANOVA tests (*) = p ≤ 0.05; (**) = p ≤ 0.01, (***) = p ≤ 0.001. c visually healthy M. cavernosa exposed to SCTLD. d SCTLD-infected M. cavernosa with elevated rab7 expression e visually healthy P. strigosa exposed to SCTLD. f SCTLD-infected P. strigosa with elevated rab7 expression. e epidermis, m mesoglea, g gastrodermis. Dashed ovals outline symbiosomes, solid ovals outline symbiont cells within symbiosomes; solid arrows = exocytosed symbiont cells; empty arrows = potentially degraded symbiont cells. Scale bar = 20 µm. Boxplot elements: center line, median; box limits, upper and lower quartiles; whiskers, 1.5x interquartile range; points beyond whiskers, outliers.