, Volume 42, Issue 4, pp 444–445 | Cite as

Fitness traits associated with the red back phenotype in the migratory grasshopper,Melanoplus sanguinipes

  • F. R. H. Hodson
  • W. Chapco
Short Communications


The dominantly inherited variant, red back, in the migratory grasshopper,Melanoplus sanguinipes, is rare in nature. The present study illustrates that is this probably due, in part, to the trait's association (either through pleiotropy of the red back gene,Pro and/or closely linked fitness loci) with lower egg hatchability, greater developmental time, greater mortality during later stages, and a greater tendency to have an extra instar.

Key words

Melanoplus sanguinipes grasshoppers genetics fitness hatchability polymorphism 


  1. 3.
    Chapco, W., Can. J. Genet. Cytol.22 (1980) 315.Google Scholar
  2. 4.
    Chapco, W., Can. J. Genet. Cytol.25 (1983) 88.Google Scholar
  3. 5.
    Everitt, B. S., The Analysis of Contingency Tables. Chapman and Hall, London 1977.Google Scholar
  4. 6.
    Shotwell, R. L., U. S. Dep. Agric. Tech. Bull774 (191) 1.Google Scholar
  5. 7.
    Uvarov, B., Grasshoppers and Locusts, vol. 1. Cambridge Univ. Press, London 1966.Google Scholar
  6. 8.
    Pfadt, R. E., Afzali, Y., and Cheng, J. S., Univ. Wyo. Agr. exp. Stn Sci. Monogr,1979 39.Google Scholar
  7. 9.
    Parker, J. R., Bull. Mont. Agr. exp. Stn223 (1930) 1.Google Scholar
  8. 10.
    Dingle, H., and Haskell, J. R., Science155 (1967) 590.Google Scholar
  9. 11.
    Smith, D. S., Ann. ent. Soc. Am.52 (1959) 674.Google Scholar
  10. 12.
    Mulkern, G. B., and Riegert, P. W., both pers. comm.Google Scholar
  11. 13.
    Hedrick, P. W., Genetics of Populations. Van Nostrand Reinhold, New York. 1983.Google Scholar
  12. 14.
    Bidochka, M. J., Genetic variation in natural populations of the migratory grasshopper,Melanoplus sanguinipes. M.Sc. thesis, University of Regina (1984).Google Scholar

Copyright information

© Birkhäuser Verlag 1986

Authors and Affiliations

  • F. R. H. Hodson
    • 1
  • W. Chapco
    • 1
  1. 1.Department of BiologyUniversity of ReginaReginaCanada

Personalised recommendations