Heritability of fumonisin B1 production in Gibberella fujikuroi mating population A

Fumonisins are mycotoxins by strains belonging to several different mating populations of Gibberella fujikuroi (anamorphs, Fusarium section Liseola), a major pathogen of maize and sorghum worldwide. We studied the heritability of fumonisin production in mating population A by crossing fumonisin-prod...

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Bibliographic Details
Published in:Applied and Environmental Microbiology 1992-09, Vol.58 (9), p.2799-2805
Main Authors: Desjardins, A.E. (National Center for Agricultural Utilization Research, ARS, USDA, Peoria, IL), Plattner, R.D, Shackelford, D.D, Leslie, J.F, Nelson, P.E
Format: Article
Language:English
Subjects:
Biological and medical sciences
Biology of microorganisms of confirmed or potential industrial interest
BIOSINTESIS
BIOSYNTHESE
Biotechnology
Carcinogens, Environmental - metabolism
Crosses, Genetic
Fumonisins
Fundamental and applied biological sciences. Psychology
GENE
GENES
Genes, Fungal
Genetic Variation
Genetics
Gibberella - classification
Gibberella - genetics
Gibberella - metabolism
GIBBERELLA FUJIKUROI
HEREDABILIDAD
HERITABILITE
MICOTOXINAS
Mission oriented research
MYCOTOXINE
Mycotoxins - biosynthesis
Phenotype
SEGREGACION
SEGREGATION
SORGHUM BICOLOR
Species Specificity
ZEA MAYS
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Summary:Fumonisins are mycotoxins by strains belonging to several different mating populations of Gibberella fujikuroi (anamorphs, Fusarium section Liseola), a major pathogen of maize and sorghum worldwide. We studied the heritability of fumonisin production in mating population A by crossing fumonisin-producing strains collected from maize and sorghum in the United States with fumonisin-nonproducing strains collected from maize in Nepal. Random ascospore and tetrad progeny from three of these crosses were analyzed by gas chromatography-mass spectrometry and high-performance liquid chromatography. In all three crosses, the ability to for their ability to produce fumonisins on autoclaved cracked maize. In all three crosses, the ability to produce fumonisins, predominately fumonisin B1, segregated as a single gene or group of closely linked genes. Intercrosses between appropriate progeny and parents were poorly fertile, so we could not determine if the apparent single genes that were segregating in each of these crosses were allelic with one another. Mating type and spore-killer traits were scored in some crosses, and each segregated, as expected, as a single gene that was unlinked to the ability to produce fumonisins. We conclude that G. fujikuroi mating population A provides a powerful genetic system for the study of this important fungal toxin
ISSN:0099-2240
1098-5336
DOI:10.1128/AEM.58.9.2799-2805.1992