Chromosomal analysis of insecticide resistant and susceptible mosquitofish

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

doi:10.1093/oxfordjournals.jhered.a110253

Chromosomal analysis of insecticide resistant and susceptible mosquitofish

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

College of Agricultural Sciences

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6 Scopus citations

Abstract

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 language	English (US)
Pages (from-to)	345-348
Number of pages	4
Journal	Journal of Heredity
Volume	77
Issue number	5
DOIs	https://doi.org/10.1093/oxfordjournals.jhered.a110253
State	Published - Sep 1986

All Science Journal Classification (ASJC) codes

Biotechnology
Molecular Biology
Genetics
Genetics(clinical)

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10.1093/oxfordjournals.jhered.a110253

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abstract = "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.",

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AB - 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.

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Chromosomal analysis of insecticide resistant and susceptible mosquitofish

Abstract

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