Figure 7

Pearson-correlations of morphometric, symbiont and syngen data of Paramecium strains under study. Colored dots indicate the strength of correlation, and the size of dots represent p-values. Bold squares highlight significant correlations, with − 0.75 > r > 0.75 and p < 0.05. Abbreviations: ANVAC number of excretory pores in anterior contractile vacuole, ALSPEC algal species, BLEN body/cell length, BWID body/cell width, CAUCIL caudal cilia length, CILROW number of ciliary rows, EXTLEN extrusome/trichocyst length, GEO geographical region, LSALEN large symbiotic algae length, LSAWID large symbiotic algae width, MACLEN macronucleus length, MACWID macronucleus width, MICLEN micronucleus length, MICWID micronucleus width, POVAC number of excretory pores in posterior contractile vacuole, SSALEN small symbiotic algae length, SSAWID small symbiotic algae width, SYN syngen affiliation.