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Table 3 Clustering of 25 Pi2/9-RH positive rice lines by sequencing the Pi2/9 homologues

From: Identification of resistant germplasm containing novel resistance genes at or tightly linked to the Pi2/9 locus conferring broad-spectrum resistance against rice blast

Pi2/9 homologues

Number of accessions carrying the same homologues

IRGC accession number

Varietal group

Country of origin

Remark

Pi2/9-A5

5

121299

Indica

Thailand

Identical to Piz-t in nucleotide sequence

121383

Indica

Lao PDR

121392

Indica

Bangladesh

121753

Indica

Philippines

121898

Aus/boro

India

Pi2/9-A15

4

121434

Indica

China

 

121607

Indica

India

 

121611

Indica

Chinese Taiwan

 

121660

Indica

Philippines

 

Pi2/9-A42

14

121315

TropJap

Colombia

 

121490

TropJap

Bolivia

 

121536

TropJap

Côte d’Ivoire

 

121632

Indica

Colombia

 

121698

TropJap

Philippines

 

121699

TropJap

Madagascar

 

121730

TropJap

Madagascar

 

121744

TropJap

France

 

121749

TropJap

Philippines

 

121755

TropJap

Philippines

 

121762

TropJap

Ghana

 

121764

TropJap

Côte d’Ivoire

 

121804

Indica

Colombia

 

121805

TropJap

Colombia

 

Pi2/9-A53

1

121884

Indica

Vietnam

 

Pi2/9-A54

1

121888

Indica

Panama

Identical to Pi2 in nucleotide sequence

  1. IRGC International Rice Genebank Collection, TropJap tropical japonica