Table 3: Comparison of gene density of Flowers with randomly selected regions. Except Flowers with length ≥ 1 Mb, the number of Flower genes was compared to that of 1,000 randomly selected regions on the human genome.

Gene number in 277 FlowersGene number/10 KbProtein-coding gene numberProtein-coding gene number/10 kb

Flower1,8410.61*1,0300.34*

Randomly selected region ( ,000)Mean3710.122820.09
S.D.390.01300.01
Min.2720.092040.07
Max.5610.194390.15

* P = 0, Z-test.