Additive action of partial heterokaryon incompatibility (partial-het) genes in Aspergillus nidulans.
We have observed partial heterokaryon-incompatibility reactions in combinations of field isolates of A. nidulans. We have demonstrated that partial heterokaryon incompatibility is genetically controlled by genes (partial-het genes) operating in the same manner as the previously-described het genes. Our results also reveal that partial-het genes can act additively in causing heterokaryon incompatibility and that partial heterokaryon incompatibility is not a barrier to the horizontal transfer of a mitochondrial marker. These results add to the growing body of evidence that vegetative-incompatibility reactions are not an absolute barrier to horizontal gene flow.
Department of Genetics, Agricultural University, Wageningen, The Netherlands.
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A
Coenen
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Debets
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Hoekstra
D000483:Alleles; D001233:Aspergillus nidulans / Q000235:genetics* / Q000502:physiology; D005800:Genes, Fungal; D005816:Genetic Complementation Test; D005819:Genetic Markers; D005838:Genotype; D008928:Mitochondria; D009154:Mutation; D010641:Phenotype
D005819:Genetic Markers