Table 3. Estimated time of homogeneous NBS-R cluster formation.

Cluster	Gene number	Gene_1	Gene_2	Ks	Mya
CL2 (Va)	2	CL2_8	CL2_9	0.68	34
CL7 (Va)	3	CL7_41	CL7_42	2.32	117
CL8 (Va)	10	CL8_51	CL8_48	1.31	66
CL27 (Va)	7	CL27_162	CL27_168	1.58	79
CL29 (Va)	4	CL29_181	CL29_183	0.54	27
CL32 (Va)	15	CL32_197	CL32_209	2.74	138
CL33 (Va)	12	CL33_220	CL33_222	2.59	130
CL36 (Va)	5	CL36_245	CL36_247	0.40	20
CL42 (Va)	4	CL42_286	CL42_287	1.92	97
CL45 (Va)	8	CL45_308	CL45_311	2.55	128
CL46 (Va)	2	CL46_314	CL46_315	1.63	82
CL4 (Va)	13	CL4_21	CL4_21	2.32	116
CL6 (Va)	3	CL6_33	CL6_34	0.92	46
CL9 (Va)	2	CL9_56	CL9_57	0.38	19
CL11 (Va)	4	CL11_69	CL11_70	0.98	49
CL13 (Va)	3	CL13_76	CL13_78	0.91	46
CL15 (Vc)	2	CL15_85	CL15_86	0.085	4
CL16 (Vc)	6	CL16_88	CL16_91	2.52	127
CL17 (Vc)	10	CL17_98	CL17_97	1.11	56
CL18 (Vc)	5	CL18_105	CL18_107	2.01	101
CL19 (Vc)	15	CL19_116	CL19_122	1.21	61
CL21 (Vc)	2	CL21_127	CL21_128	1.35	68
CL22 (Vc)	3	CL22_135	CL22_133	1.08	54
CL38 (Vc)	3	CL38_258	CL38_260	0.57	29
CL39 (Vc)	2	CL39_261	CL39_262	0.01	1
CL48 (Vc)	2	CL48_324	CL48_325	0.08	4
CL51 (Vc)	5	CL51_334	CL51_335	0.65	33
CL24 (na)	3	CL24_143	CL24_144	0.95	48
CL41 (na)	2	CL41_279	CL41_280	0.78	39

Ks values of two genes were used to infer time following Schranz and Mitchell-Olds [3].

Va and Vc are putative component genomes of grapevine.

na: indicates clusters belonging to chromosomes not assigned to Va or Vc genomes.