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Diversity of thermal aptitude of Middle Eastern and Mediterranean Puccinia striiformis f. sp. tritici isolates from different altitude zones

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Title Diversity of thermal aptitude of Middle Eastern and Mediterranean Puccinia striiformis f. sp. tritici isolates from different altitude zones
 
Creator El Amil, Rola
Shykoff, Jacqui A.
Vidal, Tiphaine
Boixel, Anne-Lise
Leconte, Marc
Hovmøller, Mogens S.
Nazari, Kumarse
De Vallavieille-Pope, Claude
 
Subject wheat
triticum aestivum
yellow (stripe) rust
sinfection efficiency
latency period
temperature aptitude
 
Description The worldwide spread of wheat yellow rust lineage PstS1/S2 adapted to higher temperatures prompted us to investigate how diverse temperature responses of this lineage are in the Middle East, where diversity was previously observed within this lineage for pathotypes and genotypes. Here we highlight the diversity of response to temperature within a PstS1/S2 population. Twenty-six isolates from eight countries and different altitudes, which were tested under four combinations of cold and warm incubation and postincubation temperature conditions, showed diversity for infection efficiency (IE) and latency period (LP). IE of the various isolates ranged from 5.8% to 13.7% under cold (5°C) and 0.04% to 1% under warm (20°C) incubation temperatures. LP varied from 10.2 days under warm to 4.43 days under cold incubation. LP of isolates from the same country could differ by 2 days. Significant differences in thermal aptitudes of the isolates were observed between and within countries. IE and LP diversity was not related to altitude origin of the isolates on the whole; however, a trade-off between IE and LP was observed for isolates from low altitude (
 
Date 2022-10-01
2023-03-21T19:37:29Z
2023-03-21T19:37:29Z
 
Type Journal Article
 
Identifier Rola El Amil, Jacqui A. Shykoff, Tiphaine Vidal, Anne-Lise Boixel, Marc Leconte, Mogens S. Hovmøller, Kumarse Nazari, Claude De Vallavieille-Pope. (1/10/2022). Diversity of thermal aptitude of Middle Eastern and Mediterranean Puccinia striiformis f. sp. tritici isolates from different altitude zones. Plant Pathology, 71 (8), pp. 1674-1687.
0032-0862
https://hdl.handle.net/10568/129713
https://dx.doi.org/10.1111/ppa.13613
 
Language en
 
Rights CC-BY-4.0
Open Access
 
Format 1674-1687
application/pdf
 
Publisher Wiley
 
Source Plant Pathology