Inheritance of resistance to acrinathrin in Frankliniella occidentalis (Thysanoptera: Thripidae)

Pest Management Science
P BielzaD Cifuentes

Abstract

The western flower thrips (WFT), Frankliniella occidentalis (Pergande), is an economically important pest. The genetic basis of acrinathrin resistance was investigated in WFT. The resistant strain, selected in the laboratory for acrinathrin resistance from a pool of thrips populations collected in Almeria (south-eastern Spain), showed a high resistance to acrinathrin (43-fold based on LC(50) values) compared with the laboratory susceptible strain. Mortality data from reciprocal crosses of resistant and susceptible thrips indicated that resistance was autosomal and not influenced by maternal effects. Analysis of probit lines from the parental strains and reciprocal crosses showed that resistance was expressed as a codominant trait. To determine the number of genes involved, a direct test of monogenic inheritance based on the backcrosses suggested that resistance to acrinathrin was probably controlled by one locus. Another approach, which was based on phenotypic variances, showed n(E), or the minimum number of freely segregating genetic factors for the resistant strain, to be 0.79. The results showed that acrinathrin resistance in WFT was autosomal and not influenced by maternal effects, and was expressed as a codominant trait, p...Continue Reading

References

Jan 1, 1992·Annual Review of Entomology·I Denholm, M W Rowland
Jan 1, 1987·Annual Review of Entomology·R T Roush, J A McKenzie
Oct 1, 1998·Insect Biochemistry and Molecular Biology·N Liu, J G Scott
Oct 8, 1999·Insect Biochemistry and Molecular Biology·J G Scott
Jan 6, 2001·Journal of Economic Entomology·D BourguetM Raymond
Sep 18, 2002·Pest Management Science·Pedro J EspinosaAlfredo Lacasa

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Citations

Aug 21, 2014·Pest Management Science·Pablo Bielza, Juan Guillén
Jan 23, 2021·Pest Management Science·Virginia BalanzaPablo Bielza

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