Table 1. Name and pedigree of maize lines.

Name	Pedigree	Genotype	Endosperm phenotype	Lysine content%
liao2345/o2-1	((liao2345×CA339)BC5)F7	o2o2	Hard and vitreous	0.32[21]
liao2345/o2-2	((liao2345×CA339)BC5)F7	o2o2	Floury and opaque	0.49
liao2345	Tie7922×Shen5003	O2O2	Hard and vitreous	0.28[21]
CA339	pool33	o2o2	Semi-hard and semi-vitreous	0.45[44]