Three new eye-colour mutations inDrosophila pseudo-obscura

  • Flora Cochrane


1. Three new sex-linked eye-colour mutants ofDrosophila pseudo-obscura are described and named: buff, rust and rust2.

2. Buff is an allele of white and eosin and has been given the symbolw b. Rust and rust2 are located 28 cross-over units to the right of vermilion and 20 to the left of sepia.

3. The combined effects of these with other eye-colour genes are described.

4. The development and histology of rust have been studied in detail and compared with wildtype.


Eosin Pigment Cell Pigment Granule Pigment Deposition Buff Male 


  1. Bridges, C. B. (1919). “Specific modifiers of eosin eye-colour inDrosophila melanogaster.”J. exp. Zool. 28, 337–84.CrossRefGoogle Scholar
  2. Cochrane, F. (1936). “Observations on eye-colour development inDrosophila pseudo-obscura.”J. Genet. 32, 183–7.Google Scholar
  3. —— (1937). “An histological analysis of eye pigment development inDrosophila pseudo-obscura.”Proc. Roy. Soc. Edinburgh,57, 385–99.Google Scholar
  4. Crew, F. A. E. &Lamy, R. (1934). “The second linkage group inDrosophila pseudo-obscura.”J. Genet. 29, 269–76.CrossRefGoogle Scholar
  5. —— —— (1935). “Linkage groups inDrosophila pseudo-obscura.”J. Genet. 30, 15–29.CrossRefGoogle Scholar
  6. Lancefield, D. E. (1922). “Linkage relations of the sex-linked characters inDrosophila obscura.”Genetics,8, 335–84.Google Scholar
  7. Morgan, T. H. &Bridges, C. B. (1913). “Dilution effects and bicolourism in certain eye-colours ofDrosophila.”J. exp. Zool. 15, 429–65.CrossRefGoogle Scholar
  8. Morgan, T. H., Bridges, C. B. &Sturtevant, A. H. (1925). “The genetics ofDrosophila.”Bibliogr. genet. 2, 1925.Google Scholar
  9. Peterfy, T. (1928).Metodik wiss. Biol. Berlin.Google Scholar
  10. Safir, S. R. (1916). “Buff, an allelomorph of white eye-colour inDrosophila.”Genetics,1, 584–90.PubMedGoogle Scholar
  11. Sturtevant, A. H. &Tan, C. C. (1937). “The comparative genetics ofDrosophila pseudo-obscura andD. melanogaster.”J. Genet. 34, 415–32.CrossRefGoogle Scholar

Copyright information

© Indian Academy of Sciences 1938

Authors and Affiliations

  • Flora Cochrane
    • 1
  1. 1.Institute of Animal GeneticsUniversity of EdinburghUK

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