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Identification of novel QTLs for seedling and adult plant leaf rust resistance in a wheat doubled haploid population

Pyramiding of genes that confer partial resistance is a method for developing wheat (Triticum aestivum L.) cultivars with durable resistance to leaf rust caused by Puccinia triticina. In this research, a doubled haploid population derived from the cross between the synthetic hexaploid wheat (SHW) (x...

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Published in:Theoretical and applied genetics 2009-07, Vol.119 (2), p.263-269
Main Authors: Chu, C.-G, Friesen, T. L, Xu, S. S, Faris, J. D, Kolmer, J. A
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description Pyramiding of genes that confer partial resistance is a method for developing wheat (Triticum aestivum L.) cultivars with durable resistance to leaf rust caused by Puccinia triticina. In this research, a doubled haploid population derived from the cross between the synthetic hexaploid wheat (SHW) (xAegilotriticum spp.) line TA4152-60 and the North Dakota breeding line ND495 was used for identifying genes conferring partial resistance to leaf rust in both the adult plant and seedling stages. Five QTLs located on chromosome arms 3AL, 3BL, 4DL, 5BL and 6BL were associated with adult plant resistance with the latter four representing novel leaf rust resistance QTLs. Resistance effects of the 4DL QTL were contributed by ND495 and the effects of the other QTLs were contributed by the SHW line. The QTL on chromosome arm 3AL had large effects and also conferred seedling resistance to leaf rust races MJBJ, TDBG and MFPS. The other major QTL, which was on chromosome arm 3BL, conferred seedling resistance to race MFPS and was involved in a significant interaction with a locus on chromosome arm 5DS. The QTLs and the associated molecular markers identified in this research can be used to develop wheat cultivars with potentially durable leaf rust resistance.
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source Springer Nature:Jisc Collections:Springer Nature Read and Publish 2023-2025: Springer Reading List
subjects Agriculture
Basidiomycota - physiology
Biochemistry
Biological and medical sciences
Biomedical and Life Sciences
Biotechnology
chromosome mapping
Chromosomes
Classical genetics, quantitative genetics, hybrids
Cultivars
disease resistance
doubled haploids
Fundamental and applied biological sciences. Psychology
Genetic Markers
Genetics of eukaryotes. Biological and molecular evolution
Haploidy
hard red spring wheat
Immunity, Innate - genetics
Infections
Life Sciences
mature plants
Original Paper
Physical Chromosome Mapping
Plant Biochemistry
Plant Breeding/Biotechnology
Plant Diseases - genetics
Plant Diseases - immunology
Plant Diseases - microbiology
Plant Genetics and Genomics
Plant Leaves - genetics
Plant Leaves - microbiology
Plant resistance
Pteridophyta, spermatophyta
Puccinia recondita
quantitative trait loci
Quantitative Trait Loci - genetics
rust diseases
seedling diseases
seedlings
Seedlings - genetics
Seedlings - microbiology
Triticum - genetics
Triticum - microbiology
Triticum aestivum
Vegetals
wheat
title Identification of novel QTLs for seedling and adult plant leaf rust resistance in a wheat doubled haploid population
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