Genetic mapping of Pyrenophora teres f. teres genes conferring avirulence on barley.
Fungal Genet Biol
; 44(5): 323-9, 2007 May.
Article
in En
| MEDLINE
| ID: mdl-17224286
ABSTRACT
A Pyrenophora teres f. teres cross between isolates 0-1 and 15A was used to evaluate the genetics of avirulence associated with barley lines Canadian Lake Shore (CLS), Tifang, and Prato. 15A is avirulent on Tifang and CLS, but virulent on Prato. Conversely, 0-1 is avirulent on Prato, but virulent on Tifang and CLS. Avirulencevirulence on Tifang and CLS segregated 11, whereas avirulencevirulence on Prato segregated 31. An AFLP-based linkage map was constructed and used to identify a single locus derived from 15A (AvrHar) conferring avirulence to Tifang and CLS. Virulence on Prato was conferred by two epistatic genes (AvrPra1 and AvrPra2). AvrPra2 co-segregated with AvrHar, but the two genes from opposite parents conferred opposite reactions. This work provides the foundation for the isolation of these avirulence genes.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Ascomycota
/
Hordeum
Type of study:
Prognostic_studies
Language:
En
Journal:
Fungal Genet Biol
Journal subject:
GENETICA
/
MICROBIOLOGIA
Year:
2007
Document type:
Article
Affiliation country: