Table 1. Number of accessions and genotypes analysed in this study.

Population	Population code	No. of accessions	No. of genotypes
Old (early 1950s) flint landraces from Marche	OL	43	83
Recent (2000) flint landraces from Marche	RL	20 a	77 a
Northern Italy landraces	NI	11	22
Modern flint maize	FMM	8	12
Modern dent maize	DMM	22	24
Total		104	218

^aThe control accession ANGRMC13 (4 genotypes) was included in the RL population.