Table 1. Description of the seven largest physical P450 clusters in the V. vinifera genome.

Label	Chr	Location	Total seq.	Complete genes	Expressed seq.	Co-expression	Organization
65	15	15572751.. 15909327	20 CYP76 4 CYP704	10	20	Flowers and constitutive	Low similarity among members
71	16	401789.. 596606	16 CYP89	11	14	All leaves	Single gene duplications
92	18	9625486.. 9912876	22 CYP82 1 CYP74 1 CYP704	14	16	Powdery mildew infection and ripe berries	Duplicated blocks with co-expression; some single gene duplications
138	3	4387722.. 4512089	22 CYP82	5	16	Young berries	Small duplicated blocks, a few are co-expressed, single gene duplications
171	6	16790972.. 17446396	21 CYP75 14 CYP79	8	28	All leaves and powdery mildew infection	Single gene duplications
182	7	22260680.. 22372250	20 CYP81	9	15	Berries	Small duplicated blocks, a few are co-expressed, single gene duplications
190	8	18038159.. 18121816	11 CYP76	7	9	Flowers	Duplicated blocks with co-expression; some single gene duplication

Label—sequential number of each cluster in the genome; Chr—chromosome number; Location—chromosome coordinates; Total seq.—number of P450 sequences in each cluster, including complete and partial genes, putative pseudogenes and pseudogenes with their family distribution; Complete genes—number of complete P450 genes in the cluster; Expressed sequences—number of expressed P450 sequences in the cluster, co-expression—expression pattern of the cluster; Organization—description of structural organization and mechanism of formation of each cluster.