Mapping multiple disease resistance genes using a barley mapping population evaluated in Peru, Mexico, and the USA

C. Rossi, A. Cuesta-Marcos, I. Vales, L. Gomez-Pando, G. Orjeda, R. Wise, Kazuhiro Sato, K. Hori, F. Capettini, H. Vivar, X. Chen, P. Hayes

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

We used a well-characterized barley mapping population (BCD 47 x Baronesse) to determine if barley stripe rust (BSR) resistance quantitative trait loci (QTL) mapped in Mexico and the USA were effective against a reported new race in Peru. Essentially the same resistance QTL were detected using data from each of the three environments, indicating that these resistance alleles are effective against the spectrum of naturally occurring races at these sites. In addition to the mapping population, we evaluated a germplasm array consisting of lines with different numbers of mapped BSR resistance alleles. A higher BSR disease severity on CI10587, which has a single qualitative resistance gene, in Peru versus Mexico suggests there are differences in pathogen virulence between the two locations. Confirmation of a new race in Peru will require characterization using a standard set of differentials, an experiment that is underway. The highest levels of resistance in Peru were observed when the qualitative resistance gene was pyramided with quantitative resistance alleles. We also used the mapping population to locate QTL conferring resistance to barley leaf rust and barley powdery mildew. For mildew, we identified resistance QTL under field conditions in Peru that are distinct from the Mla resistance that we mapped using specific isolates under controlled conditions. These results demonstrate the long-term utility of a reference mapping population and a well-characterized germplasm array for locating and validating genes conferring quantitative and qualitative resistance to multiple pathogens.

Original languageEnglish
Pages (from-to)355-366
Number of pages12
JournalMolecular Breeding
Volume18
Issue number4
DOIs
Publication statusPublished - Nov 2006

Fingerprint

Peru
Disease Resistance
Hordeum
Mexico
disease resistance
Genes
Quantitative Trait Loci
barley
quantitative trait loci
Pathogens
Population
genes
Alleles
alleles
germplasm
rust diseases
pathogens
leaf rust
powdery mildew
disease severity

Keywords

  • Blumeria graminis f. sp. hordei
  • Hordeum vulgare subsp. vulgare
  • Puccinia hordei
  • Puccinia striiformis f. sp. hordei
  • Qualitative resistance
  • Quantitative resistance

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Horticulture
  • Biotechnology
  • Plant Science
  • Biochemistry, Genetics and Molecular Biology(all)
  • Biochemistry

Cite this

Rossi, C., Cuesta-Marcos, A., Vales, I., Gomez-Pando, L., Orjeda, G., Wise, R., ... Hayes, P. (2006). Mapping multiple disease resistance genes using a barley mapping population evaluated in Peru, Mexico, and the USA. Molecular Breeding, 18(4), 355-366. https://doi.org/10.1007/s11032-006-9043-0

Mapping multiple disease resistance genes using a barley mapping population evaluated in Peru, Mexico, and the USA. / Rossi, C.; Cuesta-Marcos, A.; Vales, I.; Gomez-Pando, L.; Orjeda, G.; Wise, R.; Sato, Kazuhiro; Hori, K.; Capettini, F.; Vivar, H.; Chen, X.; Hayes, P.

In: Molecular Breeding, Vol. 18, No. 4, 11.2006, p. 355-366.

Research output: Contribution to journalArticle

Rossi, C, Cuesta-Marcos, A, Vales, I, Gomez-Pando, L, Orjeda, G, Wise, R, Sato, K, Hori, K, Capettini, F, Vivar, H, Chen, X & Hayes, P 2006, 'Mapping multiple disease resistance genes using a barley mapping population evaluated in Peru, Mexico, and the USA', Molecular Breeding, vol. 18, no. 4, pp. 355-366. https://doi.org/10.1007/s11032-006-9043-0
Rossi, C. ; Cuesta-Marcos, A. ; Vales, I. ; Gomez-Pando, L. ; Orjeda, G. ; Wise, R. ; Sato, Kazuhiro ; Hori, K. ; Capettini, F. ; Vivar, H. ; Chen, X. ; Hayes, P. / Mapping multiple disease resistance genes using a barley mapping population evaluated in Peru, Mexico, and the USA. In: Molecular Breeding. 2006 ; Vol. 18, No. 4. pp. 355-366.
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