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Genetic variation in the strongly canalized sex pheromone communication system of the European corn borer, Ostrinia nubilalis hubner (Lepidoptera; Pyralidae)

Zhu, Junwei ; Löfstedt, Christer LU and Bengtsson, Bengt O. LU (1996) In Genetics 144(2). p.757-766
Abstract

The major difference in pheromone production between the so-called E and Z strains of the European corn borer Ostrinia nubilalis is controlled by two alleles at a single autosomal locus. E-strain females produce an (E)-11- tetradecenyl acetate pheromone with 1-3% of the Z isomer, whereas Z-strain females produce the opposite blend. In laboratory-reared insects we found that F1 females produced, on average, a 71:29 E/Z ratio, but the distribution was clearly bimodal. The variability in pheromone blend produced by heterozygous females could be explained by the existence of two different alleles in the Z strain which in combination with the E-strain allele for the major production locus cause the production of a component... (More)

The major difference in pheromone production between the so-called E and Z strains of the European corn borer Ostrinia nubilalis is controlled by two alleles at a single autosomal locus. E-strain females produce an (E)-11- tetradecenyl acetate pheromone with 1-3% of the Z isomer, whereas Z-strain females produce the opposite blend. In laboratory-reared insects we found that F1 females produced, on average, a 71:29 E/Z ratio, but the distribution was clearly bimodal. The variability in pheromone blend produced by heterozygous females could be explained by the existence of two different alleles in the Z strain which in combination with the E-strain allele for the major production locus cause the production of a component mixture either high or low in the E isomer. In addition, evidence was found for an independently inherited factor, existing in the E-strain, with a dominant effect on the amount of E isomer produced by females homozygous for Z- alleles at the major production locus. Thus, the low variability normally found in the pheromone mixture produced by O. nubilalis and other moth females may, by canalization, hide a considerable amount of underlying genetic variation.

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author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Genetics
volume
144
issue
2
pages
757 - 766
publisher
Genetics Society of America
external identifiers
  • scopus:0029791083
  • pmid:8889536
ISSN
0016-6731
project
Evolutionary mechanisms of pheromone divergence in Lepidoptera
language
English
LU publication?
yes
id
e0619a0a-2992-440e-a30c-0f0518de1e77
alternative location
https://www.genetics.org/content/144/2/757
date added to LUP
2020-05-26 16:23:29
date last changed
2024-05-29 14:44:47
@article{e0619a0a-2992-440e-a30c-0f0518de1e77,
  abstract     = {{<p>The major difference in pheromone production between the so-called E and Z strains of the European corn borer Ostrinia nubilalis is controlled by two alleles at a single autosomal locus. E-strain females produce an (E)-11- tetradecenyl acetate pheromone with 1-3% of the Z isomer, whereas Z-strain females produce the opposite blend. In laboratory-reared insects we found that F<sub>1</sub> females produced, on average, a 71:29 E/Z ratio, but the distribution was clearly bimodal. The variability in pheromone blend produced by heterozygous females could be explained by the existence of two different alleles in the Z strain which in combination with the E-strain allele for the major production locus cause the production of a component mixture either high or low in the E isomer. In addition, evidence was found for an independently inherited factor, existing in the E-strain, with a dominant effect on the amount of E isomer produced by females homozygous for Z- alleles at the major production locus. Thus, the low variability normally found in the pheromone mixture produced by O. nubilalis and other moth females may, by canalization, hide a considerable amount of underlying genetic variation.</p>}},
  author       = {{Zhu, Junwei and Löfstedt, Christer and Bengtsson, Bengt O.}},
  issn         = {{0016-6731}},
  language     = {{eng}},
  month        = {{10}},
  number       = {{2}},
  pages        = {{757--766}},
  publisher    = {{Genetics Society of America}},
  series       = {{Genetics}},
  title        = {{Genetic variation in the strongly canalized sex pheromone communication system of the European corn borer, Ostrinia nubilalis hubner (Lepidoptera; Pyralidae)}},
  url          = {{https://www.genetics.org/content/144/2/757}},
  volume       = {{144}},
  year         = {{1996}},
}