Table 1.

Classification of NBS-encoding genes in ‘Dangshansuli’ and ‘Bartlett’

Typea	Numbers
	‘Dangshansuli’	‘Bartlett’
CC -NBS-LRR	90	38
TIR- NBS- LRR	37	85
Truncated NBS-LRRb
NBS-LRR	123	106
TIR- NBS	21I	55
CC-NBS	32	29
NBS	35	99
Total NBS	338	412
Total NBS with LRR	250	229
Total NBS without LRR	88	183

^aBased on the presence or absence of CC, TIR, NBS and LRR domains, the NBS genes were classified into CC-NBS-LRR, TIR-NBS-LRR and four Truncated NBS-LRR types. ^bTruncated NBS-LRR means NBS genes lacking N-terminal domain (TIR or CC) or C-terminal domain (LRR), and classified into NBS-LRR, TIR-NBS, CC-NBS, NBS