Resistance of wild wheat to stripe rust: Predictive method by ecology and allozyme genotypes

Eviatar Nevo, Zeev Gerechter-Amitai, Avigdor Beiles, Edward M. Golenberg

Research output: Contribution to journalArticlepeer-review


From 114 accessions of wild emmer wheat from 11 sites in Israel, known for their allozymic variation (Nevo & al. 1982), individual genotypes were tested for resistance to one isolate of stripe rust both in the seedling stage in a growth chamber and in the adult plant stage in the field. The results indicate that resistance to stripe rust in seedlings and adults are significantly correlated (rs = 0.40, p < 0.001). Genetic polymorphisms of resistance to stripe rust vary geographically and are predictable by climatic, as well as allozymic markers. Three variable combinations of rainfall, evaporation, and temperature explain significantly 0.40-0.53 of the spatial variance in disease resistance to stripe rust, suggesting the operation of natural selection. Several allozyme genotypes are significantly associated with disease resistance. We conclude that natural populations of wild emmer wheat in Israel contain large amounts of disease resistance genes. These populations could be effectively screened and then utilized by the phytopathologist for identifying resistant genotypes and producing new resistant cultivars.

Original languageEnglish
Pages (from-to)13-30
Number of pages18
JournalPlant Systematics and Evolution
Issue number1-2
StatePublished - Mar 1986


  • Angiosperms
  • Flora of Israel
  • Poaceae
  • Puccinia striiformis
  • Triticum dicoccoides
  • Uredinales
  • Wild emmer
  • allozyme genotypes
  • ecology
  • pathogene resistances
  • statistic analyses

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Plant Science


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