Mutations, chromosomal aberrations, and tumors in insects treated with oncogenic virus

Science (New York, N.Y.)
|January 20, 1967
PubMed

Insights

Rous-sarcoma virus exposure in Drosophila melanogaster increased lethal mutations, visible mutations, chromosomal abnormalities, and tumors. Further research is needed to confirm potential effects on chromosomal puff size.

Area of Science:

  • * Molecular biology
  • * Genetics
  • * Virology

Background:

  • * The Rous sarcoma virus (RSV) is an oncogenic retrovirus.
  • * Understanding viral effects on host genetics is crucial for disease research.

Purpose of the Study:

  • * To investigate the mutagenic and carcinogenic potential of Rous sarcoma virus in Drosophila melanogaster.
  • * To assess the impact of RSV on genetic stability and cellular processes.

Main Methods:

  • * Drosophila melanogaster were exposed to medium containing Rous sarcoma virus.
  • * Incidence of mutations (lethal, visible, chromosomal), tumors, and other genetic alterations were quantified.
  • * Preliminary analysis of chromosomal puff sizes was conducted.

Main Results:

  • * Significant increases in lethal mutations, visible mutations, chromosomal losses, and nondisjunctions were observed.
  • * Tumor incidence was elevated in the treated group.
  • * A small number of eye mosaics and translocations were noted.
  • * Preliminary data suggested a non-significant reduction in chromosomal puff size.

Conclusions:

  • * Rous sarcoma virus exhibits mutagenic and potentially carcinogenic effects in Drosophila.
  • * RSV can induce various genetic instabilities, including chromosomal aberrations.
  • * Further investigation is required to validate the observed effects on chromosomal puff size and viral persistence.

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