Parasexual recombination between vegetatively incompatible strains in Fusarium oxysporum

A. Molnár, L. Sulyok, L. Hornok

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

The genetical inter-relationship among strains, races, and formae speciales of Fusarium oxysporurn was investigated. Nitrate-non-utilizing mutants of the strains tested were unable to form heterokaryons, i.e. they belonged to different vegetative compatibility groups. When complementary auxotrophic and benomyl-resistant mutants of these vegetatively incompatible strains were paired by hyphal anastomosis, stable genetical recombinants (hybrids) were obtained in interstrain and interforma combinations. By means of protoplast fusion, stable prototrophic hybrids capable of normal growth on minimal medium were obtained in all possible infraspecific parental combinations. These experiments produced evidence of parasexual recombination between vegetatively incompatible strains of F. oxysporum.

Original languageEnglish
Pages (from-to)393-398
Number of pages6
JournalMycological research
Volume94
Issue number3
DOIs
Publication statusPublished - Jan 1 1990

Keywords

  • Forma specialis
  • Fusarium oxysporum
  • Hyphal anastomosis
  • Parasexual recombination
  • Protoplast fusion
  • Race
  • Vegetative incompatibility

ASJC Scopus subject areas

  • Biotechnology
  • Ecology, Evolution, Behavior and Systematics
  • Genetics
  • Plant Science

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