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Boxplots showing the variation in genome size (A) and masked genome size (B) across pairs of conspecific genomes from the same phylogroup with and without CRISPR-Cas systems. Values above 0.05 were considered as non-significant (ns). Stars indicate significance level: ∗p ≤ 0.05, ∗∗p ≤ 0.01, ∗∗∗p ≤ 0.001, and ∗∗∗∗p ≤ 0.0001. Boxplots in blue represent phylogroup A, yellow B, and grey C.
