Article (Scientific journals)
Key biosynthetic gene subfamily recruited for pheromone production prior to the extensive radiation of Lepidoptera.
Lienard, Marjorie; Strandh, Maria; Hedenström, Erik et al.
2008In BMC Evolutionary Biology, 8 (1), p. 270
Peer Reviewed verified by ORBi
 

Files


Full Text
Lienard et al 2008 BMC.pdf
Author postprint (2.46 MB)
Download

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
Fatty Acids; Lipids; Sex Attractants; Fatty Acid Desaturases; Amino Acid Sequence; Animals; Fatty Acid Desaturases/chemistry; Fatty Acid Desaturases/genetics; Fatty Acids/chemistry; Female; Gas Chromatography-Mass Spectrometry; Genetic Complementation Test; Lepidoptera/classification; Lepidoptera/genetics; Lipids/chemistry; Molecular Sequence Data; Moths/classification; Moths/genetics; Phylogeny; Sequence Alignment; Sex Attractants/genetics; Yeasts/genetics; Biological Evolution; Ecology, Evolution, Behavior and Systematics
Abstract :
[en] [en] BACKGROUND: Moths have evolved highly successful mating systems, relying on species-specific mixtures of sex pheromone components for long-distance mate communication. Acyl-CoA desaturases are key enzymes in the biosynthesis of these compounds and to a large extent they account for the great diversity of pheromone structures in Lepidoptera. A novel desaturase gene subfamily that displays Delta11 catalytic activities has been highlighted to account for most of the unique pheromone signatures of the taxonomically advanced ditrysian species. To assess the mechanisms driving pheromone evolution, information is needed about the signalling machinery of primitive moths. The currant shoot borer, Lampronia capitella, is the sole reported primitive non-ditrysian moth known to use unsaturated fatty-acid derivatives as sex-pheromone. By combining biochemical and molecular approaches we elucidated the biosynthesis paths of its main pheromone component, the (Z,Z)-9,11-tetradecadien-1-ol and bring new insights into the time point of the recruitment of the key Delta11-desaturase gene subfamily in moth pheromone biosynthesis. RESULTS: The reconstructed evolutionary tree of desaturases evidenced two ditrysian-specific lineages (the Delta11 and Delta9 (18C>16C)) to have orthologs in the primitive moth L. capitella despite being absent in Diptera and other insect genomes. Four acyl-CoA desaturase cDNAs were isolated from the pheromone gland, three of which are related to Delta9-desaturases whereas the fourth cDNA clusters with Delta11-desaturases. We demonstrated that this transcript (Lca-KPVQ) exclusively accounts for both steps of desaturation involved in pheromone biosynthesis. This enzyme possesses a Z11-desaturase activity that allows transforming the palmitate precursor (C16:0) into (Z)-11-hexadecenoic acid and the (Z)-9-tetradecenoic acid into the conjugated intermediate (Z,Z)-9,11-tetradecadienoic acid. CONCLUSION: The involvement of a single Z11-desaturase in pheromone biosynthesis of a non-ditrysian moth species, supports that the duplication event leading to the origin of the Lepidoptera-specific Delta11-desaturase gene subfamily took place before radiation of ditrysian moths and their divergence from other heteroneuran lineages. Our findings uncover that this novel class of enzymes affords complex combinations of unique unsaturated fatty acyl-moieties of variable chain-lengths, regio- and stereo-specificities since early in moth history and contributes a notable innovation in the early evolution of moth-pheromones.
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Lienard, Marjorie  ;  Université de Liège - ULiège > GIGA > GIGA Molecular Biology of Diseases ; Chemical Ecology and Ecotoxicology, Department of Ecology, Lund University, Ecology Building, SE-22362, Lund, Sweden. marjorie.lienard@ekol.lu.se
Strandh, Maria;  Chemical Ecology and Ecotoxicology, Department of Ecology, Lund University, SE-22362, Lund, Sweden
Hedenström, Erik;  Department of Natural Sciences, Institute of Natural Sciences, SE-85170, Sundsvall, Sweden
Johansson, Tomas;  Microbial Ecology, Department of Ecology, Lund University, SE-22362, Lund, Sweden
Löfstedt, Christer;  Chemical Ecology and Ecotoxicology, Department of Ecology, Lund University, SE-22362, Lund, Sweden
Language :
English
Title :
Key biosynthetic gene subfamily recruited for pheromone production prior to the extensive radiation of Lepidoptera.
Publication date :
02 October 2008
Journal title :
BMC Evolutionary Biology
eISSN :
1471-2148
Publisher :
Springer Science and Business Media LLC, England
Volume :
8
Issue :
1
Pages :
270
Peer reviewed :
Peer Reviewed verified by ORBi
Funding text :
We gratefully acknowledge Sven Hellqvist and Martin Barrlund for collecting Lampronia capitella larvae and Erling Jirle for technical assistance; Charles Martin for providing the ole1 yeast strain; Roger Schneiter for providing the ole1 elo1 yeast strain; Joanne Caine for providing the pYEX-CHT vector; Wendell Roelofs for stimulating discussions and Douglas Knipple for providing the YEpOLEX plasmid; Jure Piškur for supervision and valuable advice in heterologous expression; Aleš Svatoš for advice regarding the MTAD reaction; Jean-Marc Lassance for valuable advice in GC-MS analyses and comments on the manuscript and Fredrik Andersson and Anna Nilsson for contributing to methyl esters synthesis. Three anonymous referees are acknowledged for valuable comments on a previous version of this manuscript. This work was supported by the Swedish Research Council (VR) (for CL) and EU (Objective 1 the region of South Forest Countries) and Länss-tyrelsen i Västernorrlands län (for EH).
Available on ORBi :
since 25 January 2024

Statistics


Number of views
0 (0 by ULiège)
Number of downloads
2 (0 by ULiège)

Scopus citations®
 
62
Scopus citations®
without self-citations
41
OpenCitations
 
63

Bibliography


Similar publications



Contact ORBi