View More View Less
  • 1 AECS, P. O. Box 6091, Damascus, Syria
Restricted access

Powdery mildew, caused by Blumeria graminis f. sp. hordei (Bgh) is a common foliar disease of barley worldwide. The creation of new cultivars with durable resistance to Bgh is highly desirable. This work was undertaken to examine the resistance to Bgh in 10 genetically diverse barley parents, and to evaluate their general combining ability (GCA) and specific combining ability (SCA) effects toward determining the genetic basis of disease resistance. Two experiments, in a growth chamber on seedling and in the field on adult plant stages, were conducted using a randomized complete block design with three replicates. The parents expressing differences in their reactions to Bgh were crossed in a half-diallel mating design to generate 45 full-sib families. Genetic component analysis showed significant effects for both GCA and SCA under both experiments suggesting that additive as well as non-additive genetic mechanisms were involved in the expression of resistance in these parents. The estimate of narrow-sense heritability was 0.63 and broad-sense heritability was 98% indicating that selection for the disease resistance should be effective in these crosses. Resistant parents ‘Banteng, PK 30-136 and ‘Igri’ had significantly negative GCA effects, suggesting their prime suitability for use in barley breeding programs to improve resistance to Bgh.

  • Aghnoum, R., Marcel, T.C., Johrde, A., Pecchioni, N., Schweizer, P., Niks, R.E. 2010. Basal host resistance of barley to powdery mildew: connecting quantitative trait Loci and candidate genes. Mol. Plant Microbe Interact. 23: 91102.

    • Search Google Scholar
    • Export Citation
  • Anonymous, 1988. STAT-ITCF, programme, MICROSTA, realized by ECOSOFT, 2nd Version. Institut Technique des Cereals et des Fourages, Paris pp. 55.

    • Search Google Scholar
    • Export Citation
  • Arabi, M.I.E., Jawhar, M. 2012. Expression of resistance to Blumeria graminis in barley genotypes (Hordeum vulgare L.) under field and controlled conditions. J. Plant Biol. Res. 1: 107112.

    • Search Google Scholar
    • Export Citation
  • Czembor, J.H., Czembor, H.J. 1998. Powdery mildew resistance in cultivars of spring barley from Polish Register. Plant Breed. 42: 8799.

    • Search Google Scholar
    • Export Citation
  • Das, M.K., Griffey, G.A. 1994. Diallel analysis of adult plant resistance to powdery mildew in wheat. Crop Sci. 34: 948952.

  • Dehghani, H., Torabi, M., Moghadam, M., Ghanadha, M.R. 2006. Cross-plot analysis of bi plot-type allele of yellow rust of wheat. J. Seed Plant 21: 123138.

    • Search Google Scholar
    • Export Citation
  • Fehr, W.R. 1993. Principles of Cultivar Development. Vol. 1. MacMillan Publ. Co. New York, USA.

  • Griffing, B. 1956. Concept of general and specific combining ability in relation to diallel crossing systems. Aust. J. Biol. Sci. 9: 463493.

    • Search Google Scholar
    • Export Citation
  • Hickey, L. T. et al. 2012. Mapping quantitative trait loci for partial resistance to powdery mildew in an Australian barley population. Crop Sci. 52: 10211032.

    • Search Google Scholar
    • Export Citation
  • Jones, I.T., Sethar, H., Davies, L.J.E.R. 1981. Genetics of partial resistance to barley powdery mildew. In: Barley Genetics IV. Proc 4th Int Barley Genet Symp Edinburgh, pp. 449457.

    • Search Google Scholar
    • Export Citation
  • Jorgensen, J.H. 1994. Genetics of powdery mildew resistance in barley. Crit. Rev. Plant Sci. 13: 97119.

  • Moseman, J.G., Baenziger, P.S. 1981. Genes conditioning resistance of Hordeum spontaneum to Erysiphe graminins f. sp. Hordi. Crop Sci. 21: 229232.

    • Search Google Scholar
    • Export Citation
  • Mundt, C.C. 2015. Durable resistance: a key to sustainable management of pathogens and pests. Infect. Genet. Evol. 27: 446455.

  • Murray, G.M., Brennan, J.P. 2010. Estimating disease losses to the Australian barley industry. Australas. Plant Path. 39: 8596.

  • Pesaraklu, S., Soltanloo, H., Ramezanpour, S.S., Kalate, A.M., NejadGhomi, N.A.A. 2016. An estimation of the combining ability of barley genotypes and heterosis for some quantitative traits. Iran Agri. Res. 35: 7380.

    • Search Google Scholar
    • Export Citation
  • Rsaliyev, A., Pahratdinova, Z., Rsaliyev S. 2017. Characterizing the pathotype structure of barley powdery mildew and effectiveness of resistance genes to this pathogen in Kazakhstan. The Author (s) BMC Plant Biol. 17 (Suppl 1): 178.

    • Search Google Scholar
    • Export Citation
  • Ruckenbauer, D. 1977. Vergleichende Untersuchungen über die Einsatzmöglichkeiten neuer biometrischer Methoden in der Kreuzungszüchtung bei Winterweizen. I. Teil. Die Bodenkultur 28: 5893.

    • Search Google Scholar
    • Export Citation
  • Spies, A. et al. 2012. Allele mining in barley genetic resources reveals genes of race-non-specific powdery mildew resistance. Front. Plant Sci. 2: 122.

    • Search Google Scholar
    • Export Citation
  • Zadoks, J.C., Chang, T.T., Konzak, C.F. 1974. A decimal code for the growth stages of cereals. Weed Res. 14: 415421.