Chromosomal analysis of insecticide resistant and susceptible mosquitofish

D. Wise, J. D. Yarbrough, R. T. Roush

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


The meiotic karyotypes of insecticide-resistant (R) and susceptible (S), and SR F1 mosquitofish were analyzed by preparing spread, silver-stained wholemounts of synaptonemal complexes (SC) from spermatocytes. The method reveals statistically significant differences in the relative length of certain SC's between susceptible and resistant individuals. However, careful study of SCs from SR F1 fish does not reveal detectable heterozygosity for chromosomal rearrangements. It is concluded that populations of SS and RR mosquitofish are geographically isolated and that minor karyotypIc differentiation has occurred. This differentiation may or may not be causally related to the acquisition of Insecticide resistance.

Original languageEnglish (US)
Pages (from-to)345-348
Number of pages4
JournalJournal of Heredity
Issue number5
StatePublished - Sep 1986

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Molecular Biology
  • Genetics
  • Genetics(clinical)


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