Table 4.

Descriptive Statistics for Pairwise Comparison of Neighboring Genes According to Orientation of Transcription

R (Pearson correlation coefficient)
Intergenic distance (bp)
Orientation
N
Mean R ± se
Median R
Mean bp ± se
Median bp
Complete dataset without tandem duplicates (Affymetrix data) ←→ 2212 0.106 ± 0.007 0.08866 2770 ± 65.3 1872
→→/←← 4201 0.104 ± 0.0051 0.07831 2093.7 ± 33.7 1351
→← 2241 0.071 ± 0.0068 0.05515 1147.6 ± 37.4 597
Tandem duplicates only (Affymetrix data) ←→ 38 0.391 ± 0.055 0.4734 7758 ± 600 7621
→→/←← 445 0.27 ± 0.018 0.2563 5427 ± 142 4625
→←
36
0.158 ± 0.064
0.2519
5377 ± 491
4879

[i] Intergenic distance is defined as the distance between the last coding position of the first gene, on either strand, to the first coding position on the next gene.