Chromosomal location of powdery mildew resistance genes in Chinese wheat (Triticum aestivum L. em. Thell.) landraces Xiaobaidong and Fuzhuang 30

X. Q. Huang, S. L.K. Hsam, F. J. Zeller

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

Chinese wheat landraces Xiaobaidong (XBD) and FuzHuang 30 (FZ30) exhibited disease response patterns different from the cultivars, and lines possessing powdery mildew resistance (Pm) genes in Triticum aestivum after inoculation with 120 isolates of Erysiphe graminis f. sp. tritici (Egt). Monosomic analyses indicated that one Pm recessive gene is located on chromosome 7B in these two landraces. Linkage analysis with Pm5a on chromosome 7B in cultivar Hope or Selpek revealed that the resistance genes in XBD and FZ30 are closely linked to the Pm5 locus. The resistance genes in XBD and FZ30 are temporarily designated mlxbd and mlfz, respectively. Allelism tests between mlxbd and mlfz indicated that the two resistance genes are either alleles or very closely linked genes.

Original languageEnglish
Pages (from-to)311-317
Number of pages7
JournalJournal of Genetics and Breeding
Volume54
Issue number4
StatePublished - 2000
Externally publishedYes

Keywords

  • Allellic tests
  • Gene location
  • Monosomic analysis
  • Powdery mildew resistance
  • Triticum aestivum
  • Wheat landrace

Fingerprint

Dive into the research topics of 'Chromosomal location of powdery mildew resistance genes in Chinese wheat (Triticum aestivum L. em. Thell.) landraces Xiaobaidong and Fuzhuang 30'. Together they form a unique fingerprint.

Cite this