Skip to main content
Springer Nature Link
Log in

Unequal crossing over and the genetical organization of the white locus ofDrosophila melanogaster

  • Published:
Zeitschrift für Vererbungslehre Aims and scope Submit manuscript

Summary

Unequal crossing over occurs in females heterozygousw a/w a4such that a deficiency and duplication can be recovered regularly. A triplication was also found following crossing over in the homozygous duplication.

Genetic analysis of the duplication showed that of the several knownw loci only thew eandsp-w loci are duplicated.

By means of crossing overw eandsp-w were introduced separately into the left half of the duplication andw einto the right half. The phenotypic consequences of such substitutions are interpreted in terms of the loci which are included in specific functional units or genes. They suggest thatw eandsp-w are in distinctive functional units.

The fact that these duplications and deficiencies are without obvious affect on salivary gland band morphology suggests that the gene loci constitute only a small portion of the band structure.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Subscribe and save

Springer+ Basic
$34.99 /Month
  • Get 10 units per month
  • Download Article/Chapter or eBook
  • 1 Unit = 1 Article or 1 Chapter
  • Cancel anytime
Subscribe now

Buy Now

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

Explore related subjects

Discover the latest articles and news from researchers in related subjects, suggested using machine learning.

References

  • Gans, M.: Étude génétique et physiologique du mutantz deDrosophila melanogaster. Bull. biol. France et Belge. (Suppl.)38, 1 (1953).

    Google Scholar 

  • Gersh, E. S.: Cytological analysis of some stocks ofDrosophila melanogaster derived by unequal crossing over at or near the white locus. Genetics47, 1393 (1962).

    Google Scholar 

  • Goldschmidt, R. B.: “Repeats” and the modern theory of the gene. Proc. nat. Acad. Sci. (Wash.)36, 365 (1950).

    Google Scholar 

  • Green, M. M.: Putative non-reciprocal crossing over inDrosophila melanogaster. Z. Vererb.-Lehre90, 375 (1959a).

    Google Scholar 

  • — Non-homologous pairing and crossing over inDrosophila melanogaster. Genetics44, 1243 (1959b).

    Google Scholar 

  • — Spatial and functional properties of pseudo-alleles at thewhite locus inDrosophila melanogaster. Heredity13, 302 (1959c).

    Google Scholar 

  • — Further data on non-homologous pairing and crossing over inDrosophila melanogaster. Genetics46, 1555 (1961).

    Google Scholar 

  • Judd, B. H.: Analysis of products from regularly occurring asymmetrical exchange inDrosophila melanogaster. Genetics46, 1687 (1961a).

    Google Scholar 

  • — Formation of duplication-deficiency products by asymmetrical exchange within a complex locus ofDrosophila melanogaster. Proc. nat. Acad. Sci. (Wash.)47, 545 (1961b).

    Google Scholar 

  • Muller, H. J.: Further studies on the nature and causes of gene mutations. Proc. Sixth Int. Congr. Genetics1, 213 (1932).

    Google Scholar 

  • Swift, H.: Nucleic acids and cell morphology in Dipteran salivary glands. In: The molecular control of cellular activity, pp. 73. New York: McGraw-Hill Book Co., Inc. 1962.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Genetics, University of California, Davis, California, USA

    M. M. Green

Authors
  1. M. M. Green
    View author publications

    Search author on:PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Green, M.M. Unequal crossing over and the genetical organization of the white locus ofDrosophila melanogaster . Zeitschrift für Vererbungslehre 94, 200–214 (1963). https://doi.org/10.1007/BF00895897

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00895897

Keywords