Pyrenophora tritici-repentis, Causal Agent of Tan Spot: A Review of Intraspecific Genetic Diversity
نویسندگان
چکیده
M. V. Moreno1,2,3, S. A. Stenglein1,2,3 and A. E. Perelló1,4 1Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) 2Laboratorio de Biología Funcional y Biotecnología (BIOLAB)-CEBB-CONICET, Facultad de Agronomía de Azul Universidad Nacional del Centro de la Provincia de Buenos Aires (UNCPBA) 3Microbiología Agrícola, Facultad de Agronomía, UNCPBA 4Centro de Investigaciones de Fitopatología (CIDEFI) Facultad de Ciencias Agrarias y Forestales, Universidad Nacional de La Plata Argentina
منابع مشابه
Genetic Diversity of Pyrenophera tritici-repentis Isolates, the Causal Agent of Wheat Tan Spot Disease from Northern Iran
Background: The tan spot disease of wheat caused by Pyrenophera tritici-repentis has become a major disease in most wheat growing areas worldwide. Objectives: Here we used ISSR and RAPD markers to study the genetic diversity of 34 P. tritici-repentis isolates collected from North of Iran. Materials and Methods: The leaves having the typical symptoms of tan spot disease were collected and after...
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ABSTRACT The work presented here is the first major study to analyze the genetic diversity within the worldwide population of the economically important wheat pathogen Pyrenophora tritici-repentis. The genetic structure of field populations of P. tritici-repentis was determined using amplified fragment length polymorphism markers along with sequence data from the internal transcribed spacer reg...
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Alternative hosts increase the difficulty of disease management in crops because these alternate hosts provide additional sources of primary inoculum or refuges for diversity in the pathogen gene pool. Agropyron cristatum (crested wheatgrass), Bromus inermis (smooth bromegrass), Pascopyrum smithii (western wheatgrass), Stipa viridula (green needlegrass), and Thinopyrum intermedium (intermediate...
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Rye (Secale cereale L.) serves as an alternative host of Pyrenophora tritici-repentis (PTR) the cause of tan spot on wheat. Rye is cultivated as a forage or cover crop and overlaps with a significant portion of wheat acreage in the U.S. northern Great Plains; however, it is not known whether the rye crop influences the evolution of PTR races. We evaluated a global collection of 211 rye accessio...
متن کاملA single gene encodes a selective toxin causal to the development of tan spot of wheat.
The identification and characterization of pathogenicity factors are essential to an understanding of the molecular events that regulate the interaction of plant-pathogenic microbes with their hosts. We have isolated the gene that encodes a host-selective toxic protein produced by the fungus Pyrenophora tritici-repentis and confirmed that this gene functions in the plant as the primary determin...
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تاریخ انتشار 2012