Expression Patterns of ERF Genes Underlying Abiotic Stresses in Di-Haploid Populus simonii × P. nigra

Table 3

Relative mRNA abundance of ERF genes in different tissues under normal conditions.

Gene	Relative abundance
	Roots	Stems	Leaves
PthERF22	0.41	30.64	3.78
PthERF36	0.79	26.47	6.97
PthERF54	3.76	41.85	111.22
PthERF75	1.0	1.0	1.0
PthERF77	0.21	7.14	1.84
PthERF80	0.42	26.8	9.09
PthERF99	0.24	42.7	38.01
PthERF110	3.3	276.69	113.67
PthERF118	3.27	702.55	61.23
PthERF119	3.24	329.37	61.82
PthERF124	0.22	83.77	46.88
PthERF154	0.26	125.14	25.31
PthERF168	0.04	60.85	108 .57