LACK OF GENETIC-VARIABILITY IN FRENCH IDENTIFIED RACES OF PLASMOPARA-HALSTEDII, THE CAUSE OF DOWNY MILDEW IN SUNFLOWER HELIANTHUS-ANNUUS

Authors
ROECKELDREVET P COELHO V TOURVIEILLE J NICOLAS P DELABROUHE DT
Citation
P. Roeckeldrevet et al., LACK OF GENETIC-VARIABILITY IN FRENCH IDENTIFIED RACES OF PLASMOPARA-HALSTEDII, THE CAUSE OF DOWNY MILDEW IN SUNFLOWER HELIANTHUS-ANNUUS, Canadian journal of microbiology, 43(3), 1997, pp. 260-263
Citations number
23
Categorie Soggetti
Microbiology,Immunology,"Biothechnology & Applied Migrobiology",Biology
Journal title
Canadian journal of microbiology → ACNP
ISSN journal
00084166
Volume
43
Issue
3
Year of publication
1997
Pages
260 - 263
Database
ISI
SICI code
0008-4166(1997)43:3<260:LOGIFI>2.0.ZU;2-9
Abstract
Downy mildew of sunflower (Helianthus annuus L.) incitated by Plasmopa ra halstedii is a potentially devastating disease. We report here the finding of two new races of P. halstedii and also two Apron35S fungici de-resistant isolates of race A. Using the random amplified polymorphi c DNA (RAPD) technique as an initial screening for genetic variation w ithin P. halstedii French races, genetic variation was not found betwe en isolates within races 1, A, or B, and very few polymorphisms were d istinguished between all French races known today.