Table 2.

Hypothetical gene expression patterns from imprinted loci showing binary imprinting and differential expression patterns

Mature plant 2n	Male microspore/gametophyte n	Female gametophyte n	Endosperm 3n	Embryo 2n
Binary imprinting
−/−	–	–	F +++.	−/−
			M −
Differential expression
−/−	–	+	F ++++.	+/+
			M +

M, Male genome; F, female genome. Expression level from each genome is indicated by + and −.