Abstract
Publisher Summary Techniques for mapping, by means of mitotic recombination, have been used to locate new markers and establish linkage groups in the filamentous fungus aspergillus nidulans. Results from mitotic mapping are comparable to meiotic data. Mitotic mapping proved especially useful in aspergillus nidulans because the meiotic linkage maps are very long. By means of mitotic haploidization, about 40 markers are assigned to 8 linkage groups. Eleven of these markers fall into linkage group I on which research in aspergillus nidulans has been concentrated, and nine into linkage group II, which seems to have the longest map. For linkage group II, the sequence of markers on the right arm and the position of the centromere were determined by mitotic crossing-over. Mitotic mapping for all known markers and the centromeres of linkage groups I and II was, thereby completed. Agreement with results from meiotic mapping was found in all cases.
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