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. 2012 May 24;7(5):e37853. doi: 10.1371/journal.pone.0037853

Table 1. Analysis of the geographic and host effect on the population structure of PVY isolates for the three genomic regions under study.

Analyses	Association statistics	Test value			P
		R1	R2	R3	R1	R2	R3
Geographic regions	PS	29.9725	30.2605	29.6408	<0.001	<0.001	<0.001
	AI	4.7758	4.6144	4.7875	<0.001	<0.001	<0.001
Europe	MC	2.3042	2.2272	2.2736	0.1700	0.1700	0.25
Japan	MC	1.0992	1.0988	1.0949	0.0099	0.0099	0.0099
North America	MC	2.5342	2.5425	2.7597	0.0099	0.0099	0.3999
South Africa	MC	1.3259	1.2988	1.3360	0.0099	0.0099	0.0099
Chile	MC	NA¹	NA¹	NA¹
New Zealand	MC	NA¹	NA¹	NA¹
Host species	PS	4.9775	4.9845	4.9999	0.0099	<0.001	<0.001
	AI	1.0503	0.9879	1.0682	<0.001	<0.001	<0.001
Potato	MC	13.0111	12.8143	13.0830	0.0099	0.0199	0.0099
Tobacco	MC	1.0217	1.0154	1.0000	0.0199	0.0099	0.0099
Tomato	MC	NA¹	NA¹	NA¹
Pepper	MC	NA¹	NA¹	NA¹
Black nightshade igrum	MC	NA¹	NA¹	NA¹

¹

insufficient sample size (n<2).