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Table 7 Variation among and within all accessions of field peas as well as among and within groups of accessions, grouped based on different criteria

From: Assessment of genetic diversity in Ethiopian field pea (Pisum sativum L.) accessions with newly developed EST-SSR markers

Number of accessions

Source of variation

d.f.

Sum of squares

Variance components

%age of variation

FST

probability

46

Among all accessions

45

521.5

0.47 Va

40.74

0.40

Va and FST = 0.0000

 

Within all accessions

1048

699.1

0.68 Vb

59.26

  
 

Total

1093

1220.6

1.15

   

46

Among countries of origina

1

23.3

0.19 Va

10.03

0.10

Va and FST = 0.0000

 

Within countries of origina

1092

1835.1

1.76 Vb

89.96

  
 

Total

1093

1858.4

1.95

   

41

Among regionsb

4

91.7

0.13 Va

7.64

0.08

Va and FST = 0.0000

 

Within regionsb

977

1448.3

1.54 Vb

92.36

  
 

Total

981

1539.9

1.6

   

35

Among altitude groupsc

2

23.0

0.04 Va

2.11

0.02

Va and FST = 0.0000

 

With altitude groupsc

835

1476.3

1.85 Vb

97.89

  
 

Total

837

1211.6

1.89

   
  1. Different numbers of accessions were included in different groupings because not all accessions fulfil the criteria used for grouping the accessions except in the first and second cases. a = accessions were grouped into two groups (Ethiopian accessions and accessions from other countries); b = Accessions from Ethiopia were grouped into five groups according to their regions of origin (Amhara, Beni-Shangul, Oromia, SNNP and Tigray); c = Accessions from Ethiopia were grouped into three groups based on altitude of collections (<2000; between 2000 and 2500 and > 2500 m asl)