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Production of Intraspecific Hybrids of Fusarium oxysporum f. sp. radicis‐lycoperisici and Fusarium oxysporum f. sp. lycopersici by Protoplast Fusions
Author(s) -
Madhosingh C.
Publication year - 1994
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/j.1439-0434.1994.tb04543.x
Subject(s) - biology , protoplast , fusarium oxysporum , fusarium oxysporum f.sp. lycopersici , virulence , hybrid , fusarium wilt , fungi imperfecti , mutant , fusarium , plant disease resistance , intraspecific competition , microbiology and biotechnology , botany , gene , genetics , zoology
The fusion of protoplasts from the cycloheximide‐resistant mutant FOL(C) of Fusarium oxysporum f. sp. lycopersici (FOL) and the mycostatin‐resistant mutant FORL(M) of F. oxysporum f. sp. radicis‐lycopersici (FORL), produced hybrids which expressed significant differences from the parents in their pathogenicity and growth and in the electrophoretic separation patterns of their proteins, enzymes and isoenzymes. The results suggest a transformed genetic basis for these altered expressions and the feasibility of using protoplast fusion technology for examining the biology of pathogenicity genes and for elucidating the disease and virulence potential for new races from within hybridisable taxa of Fusarium spp. Such information would be useful for the design and development of long‐term control systems for Fusarium diseases, particularly in breeding programs for disease resistance in crops.