Chromosomal location of the amplified esterase genes conferring resistance to insecticides in Myzus persicae (Homoptera: Aphididae)

A - Papers appearing in refereed journals

Blackman, R. L., Spence, J. M., Field, L. M. and Devonshire, A. L. 1995. Chromosomal location of the amplified esterase genes conferring resistance to insecticides in Myzus persicae (Homoptera: Aphididae). Heredity. 75, pp. 297-302.

AuthorsBlackman, R. L., Spence, J. M., Field, L. M. and Devonshire, A. L.
Abstract

A genomic probe encompassing most of an esterase gene (E4) that is amplified in insecticide-resistant Myzus persicae was hybridized in situ to mitotic and meiotic chromosome preparations of aphid clones of known esterase type and resistance level. Binding, which was detected using the biotin-avidin system located both known types of amplified esterase sequences (E4 and FE4). All except one of the E4-producing clones had a single amplified site, on autosome 3 near the break-point of an autosomal 1,3 translocation which previous work had shown to be genetically linked to insecticide resistance. The exceptional clone had two other E4-encoding sites. The most resistant FE4-producing clone (800F) had amplified sequences at five sites (three loci: two homozygous and one heterozygous). Altogether, amplified E4 and/or FE4 sequences were found on four of the five autosome pairs of M. persicae. Possible origins of these multiple loci are discussed.

KeywordsEcology; Evolutionary Biology; Genetics & Heredity
Year of Publication1995
JournalHeredity
Journal citation75, pp. 297-302
Digital Object Identifier (DOI)doi:10.1038/hdy.1995.138
Open accessPublished as non-open access
Funder project or code113
235
Project: 051218
ISSN0018067X
PublisherWiley

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