Can I read Asexual Genetic Exchange in the Barley Pathogen Rhynchosporium secalis on EtoBox?

Asexual Genetic Exchange in the Barley Pathogen Rhynchosporium secalis by Angus H. Forgan; Wolfgang Knogge; Peter A. Anderson is a Agricultural and Biological Sciences article available to read on EtoBox.

What is Asexual Genetic Exchange in the Barley Pathogen Rhynchosporium secalis about?

The causal agent of barley scald, Rhynchosporium secalis, is a haploid anamorphic ascomycete with no known sexual stage. Nevertheless, a high degree of genetic variation has been observed in fungal populations on commercial barley cultivars and parasexuality has been suggested to contribute to this variation. In order to test whether asexual genetic exchange can occur, isolates of R. secalis were transformed to hygromycin B resistance or phleomycin resistance. Mixtures of transformants were co-inoculated either on agar or in planta and screened for the occurrence of dual-antibiotic-resistant colonies. No dual-antibiotic-resistant colonies resulted from mixing transformants of different fungal isolates. In contrast, with transformants originating from the same fungal isolate, asexual exchange of markers was demonstrated on agar plates and in planta. This is the first definitive evidence of asexual genetic exchange in R. secalis.

Who reads Asexual Genetic Exchange in the Barley Pathogen Rhynchosporium secalis?

Author

Angus H. Forgan; Wolfgang Knogge; Peter A. Anderson

Publisher

Scientific Societies

Published

2007

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)