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Table 1 Summary of the selection procedure followed to isolate new Pm3 alleles.

From: Wheat gene bank accessions as a source of new alleles of the powdery mildew resistance gene Pm3: a large scale allele mining project

Country of origin

Number of accessions

Accessions resistant or intermediately resistant to at least one powdery mildew isolate

Accessions detected with Pm3haplotype

Accessions not containing any of the Pm3ato Pm3galleles

Completely resistant candidate accessions for Pm3isolation

Pm3sequence obtained

India

92

27

21

12

7

6

China

90

15

8

6

2

2

Nepal

78

33

33

25

20

19

Ethiopia

63

10

8

8

4

3

Mexico

57

5

3

3

1

1

USA

53

7

5

5

2

-

France

51

7

3

2

2

1

Japan

51

1

-

-

-

-

Russia

38

6

3

1

-

-

Argentina

31

10

5

3

3

2

Iraq

27

7

4

4

3

2

Canada

25

6

5

5

3

2

Australia

23

7

3

2

2

1

Tajikistan

16

6

3

2

1

1

Kazakhastan

9

2

1

0

-

-

Azerbaizan

7

1

1

1

-

-

Sudan

7

2

2

2

1

1

Switzerland

7

1

-

-

-

-

Kyrgyztan

6

-

-

-

-

-

Uzbekistan

2

1

1

0

-

-

Total

733

154

109

81

51

41

  1. The entire set of 733 accessions obtained from IPK gene bank was subjected to a hierarchical selection procedure to select for the resistant accessions which were further analysed at the molecular level for the isolation of Pm3 alleles.