Genetic basis of resistance and studies on cross-resistance in a population of diamondback moth, Plutella xylostella (Lepidoptera: Plutellidae)

• Published in: Pest management science Vol. 59; no. 11; pp. 1232 - 1236
• Main Authors: Liang, P, Gao, X.W, Zheng, B.Z
• Format: Journal Article
• Language: English
• Published: Chichester, UK John Wiley & Sons, Ltd 01.11.2003; Wiley
• Subjects: abamectin; Animals; Biological and medical sciences; Biological Assay; Brassicaceae; cross resistance; Crosses, Genetic; Female; Fundamental and applied biological sciences. Psychology; Genes, Dominant; genetic resistance; genetics; insect control; insect genetics; insect pests; insecticide resistance; Insecticide Resistance - genetics; Insecticides - pharmacology; Ivermectin - analogs & derivatives; Ivermectin - pharmacology; Male; Moths - drug effects; Moths - genetics; Moths - growth & development; Multifactorial Inheritance; Phytopathology. Animal pests. Plant and forest protection; plant pests; Plutella xylostella; Plutellidae; progeny testing; pyrethroid insecticides; pyrethroids; China; China, People's Rep; Abamectin; Plutella xylostella; Arthropoda; Insecta; Lepidoptera; Pyrethroids; Genetics; Cross resistance; cross-resistance; Hyponomeutidae; Invertebrata; Plutellidae
• ISSN: 1526-498X; 1526-4998
• DOI: 10.1002/ps.760

The genetic basis of abamectin resistance was studied in a strain of the diamondback moth, Plutella xylostella (L), following laboratory selection of a field population collected at Xuanhua, Hebei Province, China. Data from the testing of F1 progeny from reciprocal crosses between abamectin-resistant and abamectin-susceptible strains indicated that resistance might be autosomal and incompletely recessive with a degree of dominance of -0.13. Chi-squared analyses from the response of a backcross of crossed F1 progeny and the resistant strain and F2 progeny were highly significant, suggesting that the resistance was probably controlled by more than one gene. The results of cross-resistance studies showed that there was little cross-resistance between abamectin and four pyrethroid insecticides (deltamethrin, beta-cypermethrin, fenvalerate and bifenthrin) and no cross-resistance between abamectin and the acylureas chlorfluazuron or flufenoxuron.