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Gene Deletions Cause Grapevine Resistance to Downy Mildew to Fail
Greg Howard
18th July, 2024
![Gene Deletions Cause Grapevine Resistance to Downy Mildew to Fail](https://static.naturalsciencenews.com/images/articles/5488_main.jpg)
Image Source: Natural Science News, 2024
Key Findings
- The study focused on grapevine downy mildew caused by Plasmopara viticola and its impact on grapevine resistance
- Researchers identified a genomic region, avrRpv3.1, linked to the breakdown of grapevine resistance
- Structural variations, including deletions in the avrRpv3.1 locus, were found in virulent P. viticola strains, explaining their ability to overcome resistance
References
Main Study
1) Multiple deletions of candidate effector genes lead to the breakdown of partial grapevine resistance to downy mildew.
Published 18th July, 2024
https://doi.org/10.1111/nph.19861
Related Studies
2) Resistance to Plasmopara viticola in grapevine 'Bianca' is controlled by a major dominant gene causing localised necrosis at the infection site.
3) A single point mutation in the novel PvCesA3 gene confers resistance to the carboxylic acid amide fungicide mandipropamid in Plasmopara viticola.