Race-specific response of Cucurbita germplasm to Pseudoperonospora cubensis

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F16%3A33160311" target="_blank" >RIV/61989592:15310/16:33160311 - isvavai.cz</a>
Result on the web
<a href="http://link.springer.com/article/10.1007%2Fs10681-016-1783-2" target="_blank" >http://link.springer.com/article/10.1007%2Fs10681-016-1783-2</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10681-016-1783-2" target="_blank" >10.1007/s10681-016-1783-2</a>

Result language
angličtina
Original language name
Race-specific response of Cucurbita germplasm to Pseudoperonospora cubensis
Original language description
The host range of Pseudoperonospora cubensis, the causal agent of cucurbit downy mildew, includes many taxa of the Cucurbitaceae. Little is known of the interactions of this pathogen with wild and weedy forms of Cucurbita, the genus encompassing two important crops, squash and pumpkin. Interactions of 97 germplasm accessions of wild and weedy Cucurbita spp. (gourd), derived from 10 species, with 11 P. cubensis isolates originating from Cucumis sativus were studied using a leaf-disc method under controlled conditions. Across the 97 accessions, 57 different reaction patterns were recorded; 15 accessions were resistant and 12 susceptible to all 11 pathogen isolates. A within accession, heterogeneous reaction was observed in only nine interactions. Of the 15 accessions resistant to all pathotypes, 13 were wild and weedy C. argyrosperma. Reactions of Cucurbita spp. to P. cubensis are race specific. The development of methodology for P. cubensis race determination and denomination should include a differential set of genotypes for each species separately. C. argyrosperma, which is partially cross-compatible with the economically important C. pepo, offers a potential source for breeding downy mildew-resistant squash and pumpkins.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
GF - Diseases, pests, weeds and plant protection
OECD FORD branch
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Project
<a href="/en/project/QH71229" target="_blank" >QH71229: Diagnostics and methods of protection against quarantine and other economically important pathogens of fruit and leafy vegetables</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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