PMID: 12770579May 29, 2003Paper

Multiple acyl-CoA desaturase-encoding transcripts in pheromone glands of Helicoverpa assulta, the oriental tobacco budworm

Insect Biochemistry and Molecular Biology
Seong Eun JeongD C Knipple

Abstract

Seven desaturase cDNAs were isolated from pheromone glands of Helicoverpa assulta, a moth producing a sex pheromone blend with high Z9-16:Ald and low Z11-16:Ald, opposite to what is found in other heliothine moths such as Helicoverpa zea. Six of the seven sequences map onto recently defined lepidopteran desaturase sequence lineages and the other is orthologous to a desaturase sequence previously reported only in H. zea. The levels of desaturase-encoding transcripts in pheromone glands were determined and the three most abundant ones were functionally expressed in a desaturase-deficient mutant strain of Saccharomyces cerevisiae. The HassNPVE transcript, shown to encode a delta9 desaturase producing more Z9-18:Acid than Z9-16:Acid, was the most abundant, followed by the HassKPSE transcript, shown to encode a delta9 desaturase producing more Z9-16:Acid than Z9-18:Acid, and by the HassLPAQ transcript, shown to encode a delta11 desaturase producing only Z11-16:Acid. Thus, the relative amounts of transcripts encoding two delta9 desaturases and a single delta11 desaturase in H. assulta pheromone glands were consistent with the relative amounts of unsaturated fatty acid precursors required to produce the major and minor sex pheromone c...Continue Reading

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Citations

Jun 27, 2008·Journal of Chemical Ecology·Ring T Cardé, Mark A Willis
Oct 4, 2008·BMC Evolutionary Biology·Marjorie A LiénardChrister Löfstedt
Jun 28, 2005·Insect Biochemistry and Molecular Biology·S P Foster
Jun 10, 2011·Insect Biochemistry and Molecular Biology·Bao-Jian DingChrister Löfstedt
Aug 19, 2009·Annals of the New York Academy of Sciences·Alejandro P Rooney
Nov 17, 2004·Insect Biochemistry and Molecular Biology·Sergio RodríguezGemma Fabriàs
Apr 29, 2005·Insect Biochemistry and Molecular Biology·Hong-Lei WangChen-Zhu Wang
Aug 25, 2004·Chemistry & Biology·Walter S Leal
May 11, 2016·Insect Biochemistry and Molecular Biology·Bao-Jian DingChrister Löfstedt
Oct 10, 2006·Insect Biochemistry and Molecular Biology·Montserrat SerraPeter H Buist
Jul 26, 2017·Zeitschrift Für Naturforschung. C, a Journal of Biosciences·Michal TupecIva Pichová

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