Analyzing wheat cultivars grown in Czech Republic for eight stem rust resistance genes

Zelba, Ondřej; Hanzalová, A.; Dumalasová, V.; Viehmannová, Iva

doi:10.1007/s10658-021-02397-3

Cited by 2 publications

(1 citation statement)

References 37 publications

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“…Further genetic analysis would be necessary to describe the genetic basis of this resistance. This cultivar is completely susceptible to local races of stem rust (Zelba et al 2022), so it seems the resistance is leaf rust specific rather than pleiotropic.…”

Section: Discussionmentioning

confidence: 93%

Leaf rust (Puccinia triticina Eriks) resistance genes in wheat cultivars registered in the Czech Republic

Hanzalová

Zelba

2022

J Plant Dis Prot

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Leaf rust (caused by Puccinia triticina Eriks-Pt) occurs regularly in the Czech Republic and can inflict considerable yield losses on wheat, particularly in the southeastern part of the country in warm and dry years. Knowledge of resistance genes (Lr) is useful in the breeding, particularly when combined with data on virulence in the rust population. Seeds of 56 winter wheat cultivars registered in the Czech Republic were obtained from the Central Institute for Supervising and Testing in Agriculture. All cultivars were tested by molecular markers to postulate the presence of Lr1,

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Section: Discussionmentioning

confidence: 93%

Leaf rust (Puccinia triticina Eriks) resistance genes in wheat cultivars registered in the Czech Republic

Hanzalová

Zelba

2022

J Plant Dis Prot

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Mapping rust resistance in European winter wheat: many QTLs for yellow rust resistance, but only a few well characterized genes for stem rust resistance

Miedaner,

Eckhoff,

Flath

et al. 2024

Theor Appl Genet

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Key message Stem rust resistance was mainly based on a few, already known resistance genes; for yellow rust resistance there was a combination of designated genes and minor QTLs. Abstract Yellow rust (YR) caused by Puccinia striiformis f. sp. tritici (Pst) and stem rust (SR) caused by Puccinia graminis f. sp. tritici (Pgt) are among the most damaging wheat diseases. Although, yellow rust has occurred regularly in Europe since the advent of the Warrior race in 2011, damaging stem rust epidemics are still unusual. We analyzed the resistance of seven segregating populations at the adult growth stage with the parents being selected for YR and SR resistances across three to six environments (location–year combinations) following inoculation with defined Pst and Pgt races. In total, 600 progenies were phenotyped and 563 were genotyped with a 25k SNP array. For SR resistance, three major resistance genes (Sr24, Sr31, Sr38/Yr17) were detected in different combinations. Additional QTLs provided much smaller effects except for a gene on chromosome 4B that explained much of the genetic variance. For YR resistance, ten loci with highly varying percentages of explained genetic variance (pG, 6–99%) were mapped. Our results imply that introgression of new SR resistances will be necessary for breeding future rust resistant cultivars, whereas YR resistance can be achieved by genomic selection of many of the detected QTLs.

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Analyzing wheat cultivars grown in Czech Republic for eight stem rust resistance genes

Cited by 2 publications

References 37 publications

Leaf rust (Puccinia triticina Eriks) resistance genes in wheat cultivars registered in the Czech Republic

Leaf rust (Puccinia triticina Eriks) resistance genes in wheat cultivars registered in the Czech Republic

Mapping rust resistance in European winter wheat: many QTLs for yellow rust resistance, but only a few well characterized genes for stem rust resistance

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