Analyzing Correlations of Three Types in Selected Lines of Drosophila melanogaster That Have Evolved Stable Extreme Geotactic Performance

Scott F. Stoltenberg, Jerry Hirsch, Stewart H. Berlocher

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

The behavior-genetic analysis of Drosophila melanogaster with geotactic performance as the phenotype is an ideal model system with which to investigate the complex relations between heredity and behavior. As part of a long-term, 38-year study, we report 4 experiments that identify and analyze trait correlations in the selected high- and low-geotaxis lines. We performed F2 correlational analyses and backcrosses to examine 3 types of correlations: (a) genotype-genotype (alcohol dehydrogenase [Adh]-amylase [Amy]), (b) genotype-phenotype (Adh and Amy- geotaxis), and (c) phenotype-phenotype (mate preference-geotaxis). Only the Adh -geotaxis correlation survived meiosis and reappeared in the F2 generation, which indicates a genotype-phenotype correlation, whereas the others did not. The importance of hybrid correlational analysis to the behavior-genetic analysis of a species is discussed.

Original languageEnglish (US)
Pages (from-to)85-94
Number of pages10
JournalJournal of Comparative Psychology
Volume109
Issue number1
DOIs
StatePublished - Mar 1995

ASJC Scopus subject areas

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

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