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. 2010 Mar 16;11:178. doi: 10.1186/1471-2164-11-178

Table 1.

Co-expression of directly neighbouring genes

Type Co-expression * P** (compared to random pairs)
Bi-directional 0.084 <10-15
Uni-directional 0.088 <10-15
Convergent 0.035 0.0067

* Average Pearson correlation coefficient

** To derive a Null expectation, we analyzed 100,000 pairs of randomly chosen genes; mean Pearson correlation of this random dataset is 0.014. P-values from Wilcoxon rank sum tests.