BIO Web Conf.
Volume 50, 20229th International Workshop on Grapevine Downy and Powdery Mildews (GDPM 2022)
|Number of page(s)||3|
|Section||Genetic and Breeding|
|Published online||05 August 2022|
Crossing Plasmopara viticola strains in controlled conditions to uncover the genomic bases of downy mildew resistance breakdown in grapevine
INRAE, Bordeaux Sciences Agro, Université de Bordeaux, SAVE, ISVV, F-33140, Villenave d’Ornon, France
2 INRAE, Mycsa, F-33140, Villenave d’Ornon, France
* Corresponding author: email@example.com
The biotrophic oomycete Plasmopara viticola is the causal agent of downy mildew, one of the major grapevine diseases. We report here a successful strategy to cross compatible strains of this pathogen and obtain a large viable progeny. We used this method to study the offspring between two P. viticola strains able to overcome two major grapevine resistance factors (Rpv3, Rpv10). Thanks to the genomic resources now available, we will genotype this progeny to build an unprecedented linkage map and uncover the genomic bases of grapevine resistance breakdown displayed by P. viticola virulent strains.
© The Authors, published by EDP Sciences, 2022
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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