From: Identification and functional characterization of bidirectional gene pairs and their intergenic regions in maize
Species
Total
Distance between TSSs of gene pairs
0.5Â kb
1Â kb
2Â kb
5Â kb
Sorghum
1,781
506
602
734
886
Rice
1,716
833
1,026
1,130
1,439
Soybean
1,573
73
79
100
111
Arabidopsis
1,543
9
10
14
41