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Journal of Comparative Physiology A

, Volume 157, Issue 4, pp 433–440 | Cite as

Inheritance of solar direction finding in sandhoppers

III. Progeny tests
  • F. Scapini
  • M. Buiatti
Article

Summary

Three natural populations ofTalitrus saltator living on differently orientated seashores and the offspring produced by crossing two of them were analysed by means of progeny tests, with the aim of gaining some data on the genetic control of solar direction finding. Data from fullsib family-analyses showed a genetic heterogeneity within at least two of the populations tested: some families oriented towards the sea, some in a different direction and others were dispersed. Intrafamily behaviour in the first and second generations and a mass analysis of dispersed families, suggests that dispersion may arise from segregation of heterozygous parental genotypes. The data obtained generally support the hypothesis of an oligogenic rather than a polygenic control of direction finding.

Keywords

Natural Population Genetic Control Mass Analysis Genetic Heterogeneity Direction Finding 
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.

Abbreviations

TED

theorical escape direction

IED

innate escape direction

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Copyright information

© Springer-Verlag 1985

Authors and Affiliations

  • F. Scapini
    • 1
  • M. Buiatti
    • 1
  1. 1.Dipartimento di Biologia animale e geneticaUniversità di FirenzeFirenzeItalia

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