Lack of genetic variability in French identified races of Plasmopara halstedii, the cause of downy mildew in sunflower Helianthus annuus-Reference-Cited by-同舟云学术

Lack of genetic variability in French identified races of Plasmopara halstedii, the cause of downy mildew in sunflower Helianthus annuus

Published:1997-03-01 Issue:3 Volume:43 Page:260-263
ISSN:0008-4166
Container-title:Canadian Journal of Microbiology
language:en
Short-container-title:Can. J. Microbiol.

Author:

Roeckel-Drevet Patricia,Coelho Véronique,Nicolas Paul,Tourvieille Jeanne,Labrouhe Denis Tourvieille de

Abstract

Downy mildew of sunflower (Helianthus annuus L.) incitated by Plasmopara halstedii is a potentially devastating disease. We report here the finding of two new races of P. halstedii and also two Apron35S fungicide-resistant isolates of race A. Using the random amplified polymorphic DNA (RAPD) technique as an initial screening for genetic variation within P. halstedii French races, genetic variation was not found between isolates within races 1, A, or B, and very few polymorphisms were distinguished between all French races known today.Key words: Plasmopara halstedii, race, genetic variability, RAPD.

Publisher

Canadian Science Publishing

Subject

Genetics,Molecular Biology,Applied Microbiology and Biotechnology,General Medicine,Immunology,Microbiology

Link

http://www.nrcresearchpress.com/doi/pdf/10.1139/m97-036

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4. Effect of Host-race Combination on Resistance of Sunflower, Helianthus annuus L., to Downy Mildew Plasmopara balstedii

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