From: Identification and functional characterization of bidirectional gene pairs and their intergenic regions in maize
Species
Genome size (Mb)
Total
Distance between TSSs of gene pairs
5Â kb
10Â kb
50Â kb
100Â kb
Brachypodium distachyon
272
1571
NA
1
9
18
Selaginella moellendorfii
212
1597
2
5
Zea mays
2700
1573
3