The wheat powdery mildew resistance gene Pm4 also confers resistance to wheat blast.
Nat Plants
; 10(6): 984-993, 2024 06.
Article
em En
| MEDLINE
| ID: mdl-38898165
ABSTRACT
Wheat blast, caused by the fungus Magnaporthe oryzae, threatens global cereal production since its emergence in Brazil in 1985 and recently spread to Bangladesh and Zambia. Here we demonstrate that the AVR-Rmg8 effector, common in wheat-infecting isolates, is recognized by the gene Pm4, previously shown to confer resistance to specific races of Blumeria graminis f. sp. tritici, the cause of powdery mildew of wheat. We show that Pm4 alleles differ in their recognition of different AVR-Rmg8 alleles, and some confer resistance only in seedling leaves but not spikes, making it important to select for those alleles that function in both tissues. This study has identified a gene recognizing an important virulence factor present in wheat blast isolates in Bangladesh and Zambia and represents an important first step towards developing durably resistant wheat cultivars for these regions.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Doenças das Plantas
/
Ascomicetos
/
Triticum
/
Resistência à Doença
Idioma:
En
Ano de publicação:
2024
Tipo de documento:
Article
País de afiliação:
Reino Unido