Table 1

Properties of the PPI network for each temporal group

Temporal group

Approximate group age (MYA)

Gene number in the genome

Gene number in the interaction network

Average interaction degree

Average clustering coefficient

Average Omega


1

990

720

544

29.509

0.212

0.034

2

450

5211

3546

17.399

0.196

0.089

3

360

1929

1093

13.100

0.193

0.096

4

310

2694

1348

10.061

0.180

0.128

5

90

6663

2794

8.623

0.169

0.179

6

50*

1313

205

3.434

0.176

0.168


MYA: million years ago

* Could not be accurately estimated because of our method of assigning temporal groups

Zhao and Mooney BMC Genomics 2012 13:150   doi:10.1186/1471-2164-13-150

Open Data