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פותח על ידי קלירמאש פתרונות בע"מ -
Resistance of wild emmer wheat to stem rust: Ecological, pathological and allozyme associations
Year:
1991
Source of publication :
Euphytica
Authors :
גרכטר-אמיתי, זאב
;
.
Volume :
53
Co-Authors:
Nevo, E., Institute of Evolution, University of Haifa, Mt. Carmel, Haifa, 31999, Israel
Gerechter-Amitai, Z., The Volcani Center, Agricultural Research Organization (ARO), Bet Dagan, Israel
Beiles, A., Institute of Evolution, University of Haifa, Mt. Carmel, Haifa, 31999, Israel
Facilitators :
From page:
121
To page:
130
(
Total pages:
10
)
Abstract:
Seedling resistance to wheat stem rust was determined in populations of wild emmer wheat, Triticum dicoccoides, and characterized by means of ecological factors and allozyme genotypes. Reactions to wheat stem rust were studied in 102 single plant accessions of T. dicoccoides from ten populations by inoculation with Puccinia graminis tritici race 14, isolate GSR-739. Six populations displayed different degrees of response polymorphism with reactions ranging from high resistance to complete susceptibility, whereas four populations contained only susceptible plants. In some of the accession, unexplained intrasib variation in resistance and intraplant variation of infection-types were found. Resistance to stem rust was negatively correlated with two ecological factors, altitude and number of 'Sharav' (hot-dry) days which are unfavorable to disease development. Variation in stem rust response was shown to exist in ecogeographic regions where climatic variables enhanced the development of the fungus, conceivably maintained by natural selection. Likewise, allozyme genotypes, single or in multiple loci combinations, appeared to be associated with resistance or susceptibility to rust. Such association need to be verified by genetic studies in order to become established as useful markers. © 1991 Kluwer Academic Publishers.
Note:
Related Files :
allozyme genotypes
disease resistance
Ecology
Puccinia graminis f.sp. tritici
stem rust
Triticum dicoccoides
Wild emmer
עוד תגיות
תוכן קשור
More details
DOI :
10.1007/BF00023792
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
20087
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:33
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Scientific Publication
Resistance of wild emmer wheat to stem rust: Ecological, pathological and allozyme associations
53
Nevo, E., Institute of Evolution, University of Haifa, Mt. Carmel, Haifa, 31999, Israel
Gerechter-Amitai, Z., The Volcani Center, Agricultural Research Organization (ARO), Bet Dagan, Israel
Beiles, A., Institute of Evolution, University of Haifa, Mt. Carmel, Haifa, 31999, Israel
Resistance of wild emmer wheat to stem rust: Ecological, pathological and allozyme associations
Seedling resistance to wheat stem rust was determined in populations of wild emmer wheat, Triticum dicoccoides, and characterized by means of ecological factors and allozyme genotypes. Reactions to wheat stem rust were studied in 102 single plant accessions of T. dicoccoides from ten populations by inoculation with Puccinia graminis tritici race 14, isolate GSR-739. Six populations displayed different degrees of response polymorphism with reactions ranging from high resistance to complete susceptibility, whereas four populations contained only susceptible plants. In some of the accession, unexplained intrasib variation in resistance and intraplant variation of infection-types were found. Resistance to stem rust was negatively correlated with two ecological factors, altitude and number of 'Sharav' (hot-dry) days which are unfavorable to disease development. Variation in stem rust response was shown to exist in ecogeographic regions where climatic variables enhanced the development of the fungus, conceivably maintained by natural selection. Likewise, allozyme genotypes, single or in multiple loci combinations, appeared to be associated with resistance or susceptibility to rust. Such association need to be verified by genetic studies in order to become established as useful markers. © 1991 Kluwer Academic Publishers.
Scientific Publication
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