A jumping sex determining factor in the flyMegaselia scalaris
Autor: | Walther Traut, Ute Willhoeft |
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Rok vydání: | 1990 |
Předmět: | |
Zdroj: | Chromosoma. 99:407-412 |
ISSN: | 1432-0886 0009-5915 |
Popis: | To test earlier reports on changes of the sex determining linkage group inMegaselia scalaris, we used a combination of a cytogenetic and a phenotypic marker in a laboratory strain as a detection system for rare cases in which linkage of the marker and the Y chromosome was disrupted. From some of the exceptional males detected in this system we established strains with a different chromosome pair acting as the sex chromosome pair. Cytogenetic analysis, crossbreeding tests with a phenotypic marker and DNA blot hybridization with cloned DNA probes indicated that an epistatic male determining factor had moved to one of the former autosomes at a frequency of at least 0.06%. |
Databáze: | OpenAIRE |
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