Assessment of diversity and genetic relationships of Neonectria ditissima: the causal agent of fruit tree canker

Table 5 AFLP-based variation estimated with Jaccard’s similarity coefficients among single-ascospore isolates originating from within the same or from different perithecia of N. ditissima

Within the same perithecium		Between different perithecia on the same tree		Between different perithecia on different trees in the same orchard
RP3 :		RP1×RP2×RP3:		RP×GP:
Mean	0.96	Mean	0.75	Mean	0.56
Max	1	Max	0.85	Max	0.68
Min	0.94	Min	0.60	Min	0.45
GP1:		GP1×GP2:		RP×HP:
Mean	0.76	Mean	0.77	Mean	0.56
Max	0.84	Max	0.87	Max	0.69
Min	0.73	Min	0.61	Min	0.44
GP2 :		HP1×HP2×HP3:		GP×HP:
Mean	0.85	Mean	0.76	Mean	0.58
Max	0.90	Max	0.84	Max	0.70
Min	0.80	Min	0.63	Min	0.45
HP1:		Mean	0.76	Mean	0.56
Mean	0.86
Max	0.90
Min	0.84
HP2:
Mean	0.86
Max	0.90
Min	0.83
Mean	0.85

R, G and H are different apple cultivars; R: ‘Red Delicious’, G: ‘Gravensteiner’, H: ‘Holsteiner Cox’, P1-3: different perithecia of each cultivar
Bold data indicate the total average pairwise similarity at three levels

ISSN: 1601-5223