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Chromosoma

, Volume 99, Issue 6, pp 407–412 | Cite as

A jumping sex determining factor in the flyMegaselia scalaris

  • Walther Traut
  • Ute Willhoeft
Article

Abstract

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%.

Keywords

Linkage Group Developmental Biology Rare Case Determine Factor Chromosome Pair 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1990

Authors and Affiliations

  • Walther Traut
    • 1
  • Ute Willhoeft
    • 1
  1. 1.Institut für BiologieMedizinische Universität LübeckLübeckFederal Republic of Germany

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