Table 3.
Association between geographic origin, host species, viral strain, and length of pipo allele with the distribution of viral isolates in the MCC phylogenetic tree obtained for PVY
| Analyses | # Isolates | Association statistics | Test value | P |
|---|---|---|---|---|
| Geographic origin |
|
PS |
36.260 |
< 0.001 |
| |
|
AI |
4.928 |
< 0.001 |
| Asia |
17 |
MC |
1.739 |
0.040 |
| Europe |
32 |
MC |
2.768 |
0.180 |
| America |
27 |
MC |
2.354 |
0.010 |
| Africa |
1 |
MC |
NA1 |
|
| Oceania |
1 |
MC |
NA1 |
|
| Host species |
|
PS |
7.922 |
0.040 |
| |
|
AI |
1.416 |
0.060 |
| Potato |
63 |
MC |
11.566 |
0.030 |
| Tobacco |
4 |
MC |
1.068 |
0.050 |
| Pepper |
1 |
MC |
NA1 |
|
| Black nightshade |
1 |
MC |
NA1 |
|
| Wild tomato |
1 |
MC |
NA1 |
|
| Tomato |
1 |
MC |
NA1 |
|
| Strain |
|
PS |
27.433 |
< 0.001 |
| |
|
AI |
4.092 |
< 0.001 |
| O |
46 |
MC |
4.361 |
0.010 |
| N |
23 |
MC |
2.148 |
0.010 |
| C |
8 |
MC |
1.120 |
0.010 |
| PIPO length |
|
PS |
27.323 |
< 0.001 |
| |
|
AI |
4.141 |
< 0.001 |
| 76 |
51 |
MC |
4.410 |
0.010 |
| 73 |
22 |
MC |
2.046 |
0.010 |
| 77 |
4 |
MC |
1.063 |
1 |
| 93 |
1 |
MC |
NA1 |
|
| 62 |
1 |
MC |
NA1 |
|
| 74 |
1 |
MC |
NA1 |
|
| 65 | 1 | MC | NA1 |
AI: Association index, PS: Parsimony score, MC: Maximum monophyletic clade size.
1insufficient sample size (n < 2).