Nitrogen-driven stem elongation in poplar is linked with wood modification and gene clusters for stress, photosynthesis and cell wall formation

Table 3 Network characteristics of three identified main complexes

Parameter	Complex 1	Complex 2	Complex 3
Clustering coefficient	0.51	0.73	0.82
Net diameter	7	3	4
Net radius	4	2	2
Net centrality	0.20	0.41	0.41
Shortest path	8372	3192	2862
Characteristic path length	2.85	1.56	1.80
Mean number of neighbors	7.9	26.0	20.3
Nodes	92	57	54
Net density	0.09	0.46	0.38
Net heterogeneity	0.74	0.46	0.63
Edges	364	740	547
Number of Arabidopsis matches in the nodes	90	57	52

Networks were generated in Popgenie v3.0 (http://popgenie.org/) with the significantly regulated genes in the elongation zone of P. trichocarpa. Network parameters were calculated with Cytoscape.

ISSN: 1471-2229