Table 1.

Array of tandem duplicate copies among NB-LRR loci

	Number of NB-LRR genes	Number of tandem duplicates	Fraction of tandem duplicates	Number of tandem arrays	Average number of genes per array	Number of genes in largest array
B. rapa	167	92	55%	31	2.9	8
E. parvulum	72	37	51%	13	2.8	9
A. thaliana Col-0	140	94	67%	32	2.9	8
A. lyrata	166	71	43%	23	3.1	9
Aet. arabicum	112	71	63%	21	3.4	11
T. hasslerania	59	26	44%	10	2.6	6
C. papaya	44	32	72%	10	3.2	5
C. sinensis	455	136	30%	61	2.2	5
V. vinifera	294	206	70%	62	3.3	10
N. benthamiana	233	58	25%	26	2.2	5
S. tuberosum	402	238	59%	77	3.1	8
S. lycopersicum	219	125	57%	40	3.1	7
Σ	2,363	1,186	50%*	406	2.9	7.6

*Difference of value compared to Figure 5 us due to presence on N. benthamiana.

Comparison of NB-LRR locus-containing tandem arrays* among twelve species.