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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

From: Intra-specific variability and biological relevance of P3N-PIPO protein length in potyviruses

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

 
  1. AI: Association index, PS: Parsimony score, MC: Maximum monophyletic clade size.
  2. 1insufficient sample size (n < 2).