Table 3.

Summary of 4 poplar floral homeotic genes. (+) = gene expression detected; (-) = gene expression not detected; (++) = gene expression detected at a higher level.

Poplar gene	Expression in developing flowers		Vegetative expression	Arabidopsis homolog
Poplar gene	Female	Male	Vegetative expression	Arabidopsis homolog
PTFL	++	++	+	LFY
PTD	+	++	-	AP3
PTAG1	++	++	+	AG
PTAG2	++	++	+	AG