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| ACCESSION | PLANT NAME | TAXONOMY | ORIGIN | GENEBANK | IMAGE | AVAILABILITY | RECEIVED | SOURCE TYPE | SOURCE DATE | COLLECTION SITE | COORDINATES | ELEVATION | HABITAT | IMPROVEMENT LEVEL | NARRATIVE | | |
|---|
| 0 | PI 584766 | Q21861 | Hordeum vulgare L. subsp. vulgare | Western Australia, Australia | NSGC |  | | 1995 | DEVELOPED | | | | | | Breeding material | Resistance to pathotypes QCC and MCC of Puccinia graminis f.sp. tritici at the seedling and adult plant stages. Genetic studies revealed a recessive gene, designated rpg4, that confers resistance to pathotypes QCC and MCC at low incubation temperatures (18-23C). Also posses genes for resistance to leaf rust and powdery mildew. | 1483028 | PI 584766 |
| 1 | GSHO 2438 | rpg4.d | Hordeum vulgare L. subsp. vulgare | North Dakota, United States | NSGC |  | | 1996 | DONATED | 04/1996 | | | | | Genetic material | The rpg4.d gene confers low infection types to pathotypes QCC and MCC of the wheat stem rust pathogen (Puccinia graminis f sp tritici) at the seedling stage under low incubation temperatures 18 to 22 degrees C. This gene is ineffective (exhibits compatible infection types) against some pathotypes at incubation temperatures greater than 27 degrees C. At the adult plant stage, the rpg4.d allele confers a moderate to high level of resistance to pathotype QCC. The rpg4.d gene confers a dominant resistant reaction to Puccinia graminis f sp secalis. Inheritance: Monofactorial recessive. Located in chromosome 5HL [7L], in central part of 5HL about 4.9 cM distal from RFLP marker MWG740. Previous nomenclature and gene symbolization: None. Mutational events: rpg4.d in Q21861. Mutant used for description and seed stocks: rpg4.d in Q21861 (GSHO 2438). | 1545054 | GSHO 2438 |