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Table 2 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 PPV

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

Analyses

# Isolates

Association statistics

Test value

P

Geographic origin

 

PS

22.722

< 0.001

  

AI

4.167

< 0.001

 Asia

39

MC

4.205

0.010

 America

20

MC

2.283

0.010

 Europe

6

MC

1.120

0.010

Host species

 

PS

24.777

< 0.001

  

AI

4.614

< 0.001

 Apricot

38

MC

3.993

0.010

 Peach

16

MC

1.855

0.010

 Plum

6

MC

1.144

0.030

 Cherry

4

MC

1.054

0.010

 Almond

1

MC

NA1

 

Strain

 

PS

5.850

< 0.001

  

AI

1.222

< 0.001

 D

53

MC

11.381

0.010

 C

5

MC

1.145

0.010

 M

1

MC

NA1

 

PIPO length

 

PS

9.598

< 0.001

  

AI

2.070

< 0.001

 103

59

MC

9.409

0.010

 106

9

MC

1.345

0.010

 100

1

MC

NA1

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