Título
Population structure of leaf pathogens of common spring wheat in the West Asian regions of Russia and North Kazakhstan in 2017
Autor
Elena Gultyaeva
Vladimir Shamanin
Alexey Morgounov
Nivel de Acceso
Acceso Abierto
Materias
Resumen o descripción
Kazakhstani material. The isolates of tan spot were identified in all the regions. Five races of P. triticirepentis were identified among Chelyabinsk isolates based on the toxins produced by the following pathogens: race 1 (PtrToxA PtrToxС); race 2 (PtrToxA); race 7 (PtrToxA, PtrToxВ), race 8 (PtrToxA, PtrToxВ, PtrToxС), and race 4 (does not produce toxins). Three races were identified in the Omsk region (1 – 3) and four, in North Kazakhstan (1 – 4). A total of 26 P. tritici-repentis phenotypes were identified by virulence analysis using 11 differential lines: two were present in all the populations; two. in Chelyabinsk and North Kazakhstan; one, in Omsk and Chelyabinsk; and all the others were original. A high degree of similarity between the obligate pathogen P. triticina and the saprophytic pathogen P. tritici-repentis in the West-Asian region of Russia and in North Kazakhstan demonstrates that this is one epidemiological region across this wheat production area. The presence of common phenotypes suggests there is a the possibility of gene exchange between the populations and this shall be considered while releasing genetically protected wheat varieties.
Fecha de publicación
2018
Tipo de publicación
Artículo
Recurso de información
Formato
application/pdf
Idioma
Inglés
Audiencia
Investigadores
Repositorio Orígen
Repositorio Institucional de Publicaciones Multimedia del CIMMYT
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