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Table 4 Evaluation of the detected intra- and interchromosomal linkage disequilibrium (LD). LD analysis was performed for the whole set of 953 barley accessions and a subset of 207 European 2-rowed spring barley accessions. The number of common loci pairs in LD is shown in bold.

From: Analysis of molecular diversity, population structure and linkage disequilibrium in a worldwide survey of cultivated barley germplasm (Hordeum vulgare L.)

  

Worldwide accessions

European 2-rowed spring accessions

Chromosome 1H

No of loci pairs in LD*

2+1

2

 

Mean r2*

0.073

0.182

Chromosome 2H

No of loci pairs in LD*

1

1

 

Mean r2*

0.085

0.06

Chromosome 3H

No of loci pairs in LD*

3

3+1

 

Mean r2*

0.121

0.279

Chromosome 4H

No of loci pairs in LD*

1

1

 

Mean r2*

0.162

 

Chromosome 5H

No of loci pairs in LD*

1+1

1

 

Mean r2*

0.1

0.19

Chromosome 6H

No of loci pairs in LD*

0

5

 

Mean r2*

 

0.162

Chromosome 7H

No of loci pairs in LD*

0

2

 

Mean r2*

 

0.172

Total intrachromosomal

% of loci pairs in LD with P < 0.001

100%

45%

 

No of loci pairs in LD*

10

16

 

Mean r2*

0.103

0.214

 

Range of variation*

(0.062–0.191)

(0.053–0.598)

Total interchromosomal

% of loci pairs in LD with P < 0.001*

98%

42%

 

No of loci pairs in LD*

22

30

 

Mean r2*

0,064

0,083

 

Range of variation*

(0.050–0.136)

(0.050–0.215)

  1. *) Only loci pairs with r2 > 0.05 at P < 0.001 level were evaluated.