Molecular markers and phenotypic characterization of adult plant resistance genes Lr 34, Lr 46, Lr 67 and Lr 68 and their association with partial resistance to leaf rust in wheat

Thirty-nine wheat genotypes were studied to estimate their partial resistance levels to leaf rust at Behira governortae during three growing seasons, i.e. 2016/2017, 2017/2018 and 2018/2019. In these genotypes, partial resistance was characterized using final leaf rust severity (FRS %) and area unde...

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Bibliographic Details
Published in:Journal of genetics 2019-09, Vol.98 (3), p.1-12, Article 82
Main Authors: El-Orabey, Walid M., Hamwieh, Aladdin, Ahmed, Shaimaa M.
Format: Article
Language:English
Subjects:
Animal Genetics and Genomics
Basidiomycota - genetics
Biomedical and Life Sciences
Chromosome Mapping
Disease Resistance - genetics
Evolutionary Biology
Genes
Genes, Plant
Genetic aspects
Genetic Association Studies
Genetic Markers
Genetic research
Genotype
Genotypes
Leaf rust
Life Sciences
Microbial Genetics and Genomics
Phenotype
Plant Diseases - genetics
Plant Diseases - microbiology
Plant genetics
Plant Genetics and Genomics
Plant resistance
Research Article
Triticum - genetics
Wheat
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Summary:Thirty-nine wheat genotypes were studied to estimate their partial resistance levels to leaf rust at Behira governortae during three growing seasons, i.e. 2016/2017, 2017/2018 and 2018/2019. In these genotypes, partial resistance was characterized using final leaf rust severity (FRS %) and area under disease progress curve (AUDPC). Of the tested genotypes, only three wheat varieties; Giza 171, Misr 3 and Sohag 5 showed complete resistance. Further, 28 of the 39 genotypes had partial resistance as they revealed low and/or moderate values of FRS (%) and AUDPC (not exceeding 30% and 300, respectively). The other eight varieties were fast rusting, as they displayed the maximum values of FRS (%) and AUDPC. The four monogenic lines; Lr 34, Lr 46, Lr 67 and Lr 68 were identified in the wheat varieties using linked molecular markers; csLV34, Xgwm259, CFD71 and csGSR. Phenotypic results of the wheat varieties were confirmed by molecular marker analysis.
ISSN:0022-1333
0973-7731
DOI:10.1007/s12041-019-1122-1