highly significantP < 2.2 × 10 −16
On the other hand, when we considered each individual base count independently, we observed that the count of G nucleotides specifically shows a stronger negative correlation (R = −0.22) than the C nucleotide count (R = −0.074) alone ( Figure S5 A), although both correlations are highly significant (P < 2.2 × 10 −16 ).