A Gene Correlate of Geotaxis Near Adh (2-50.1) in Drosophila melanogaster

Scott F. Stoltenberg, Jerry Hirsch

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Abstract

As part of a long-term study (38+ years) to identify genetic correlates of geotaxis in Drosophila melanogaster, the investigators report the results of allozyme-level analyses of 2 lines derived from hybridizing high- and low-selected lines that have evolved stable extreme expressions of geotaxis. Allelic variation at Adh was associated with geotactic performance in 1 hybrid-derived line, but not in another, after 66 free-mating generations beyond the F2 generation. A second-chromosome gene correlate of geotaxis may lie within 1 map unit of Adh Population genetic analyses suggest that there were different selection pressures on the hybrid-derived lines and that the fixation of PGD-A in the high-geotaxis line was probably due to a founder-effect event.

Original languageEnglish (US)
Pages (from-to)252-259
Number of pages8
JournalJournal of Comparative Psychology
Volume110
Issue number3
DOIs
Publication statusPublished - Sep 1996

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ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Psychology (miscellaneous)

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