Transcriptome analysis of the sex pheromone gland of the noctuid moth <it>Heliothis virescens</it>

<p>Abstract</p> <p>Background</p> <p>The chemical components of sex pheromones have been determined for more than a thousand moth species, but so far only a handful of genes encoding enzymes responsible for the biosynthesis of these compounds have been identified. For u...

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Main Authors: Heckel David G, Heidel Andrew J, Vogel Heiko, Groot Astrid T
Format: Article
Language:English
Published: BMC 2010-01-01
Series:BMC Genomics
Online Access:http://www.biomedcentral.com/1471-2164/11/29
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author Heckel David G
Heidel Andrew J
Vogel Heiko
Groot Astrid T
author_facet Heckel David G
Heidel Andrew J
Vogel Heiko
Groot Astrid T
author_sort Heckel David G
collection DOAJ
description <p>Abstract</p> <p>Background</p> <p>The chemical components of sex pheromones have been determined for more than a thousand moth species, but so far only a handful of genes encoding enzymes responsible for the biosynthesis of these compounds have been identified. For understanding the evolution of moth sexual communication, it is essential to know which genes are involved in the production of specific pheromone components and what controls the variation in their relative frequencies in the pheromone blend. We used a transcriptomic approach to characterize the pheromone gland of the Noctuid moth <it>Heliothis virescens</it>, an important agricultural pest, in order to obtain substantial general sequence information and to identify a range of candidate genes involved in the pheromone biosynthetic pathway.</p> <p>Results</p> <p>To facilitate identifying sets of genes involved in a broad range of processes and to capture rare transcripts, we developed our majority of ESTs from a normalized cDNA library of <it>Heliothis virescens </it>pheromone glands (PG). Combining these with a non-normalized library yielded a total of 17,233 ESTs, which assembled into 2,082 contigs and 6,228 singletons. Using BLAST searches of the NR and Swissprot databases we were able to identify a large number of putative unique gene elements (unigenes), which we compared to those derived from previous transcriptomic surveys of the larval stage of <it>Heliothis virescens</it>. The distribution of unigenes among GO Biological Process functional groups shows an overall similarity between PG and larval transcriptomes, but with distinct enrichment of specific pathways in the PG. In addition, we identified a large number of candidate genes in the pheromone biosynthetic pathways.</p> <p>Conclusion</p> <p>These data constitute one of the first large-scale EST-projects for Noctuidae, a much-needed resource for exploring these pest species. Our analysis shows a surprisingly complex transcriptome and we identified a large number of potential pheromone biosynthetic pathway and immune-related genes that can be applied to population and systematic studies of <it>Heliothis virescens </it>and other Noctuidae.</p>
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spelling doaj.art-af59f081b60441378cfed89cd75947692022-12-22T03:18:52ZengBMCBMC Genomics1471-21642010-01-011112910.1186/1471-2164-11-29Transcriptome analysis of the sex pheromone gland of the noctuid moth <it>Heliothis virescens</it>Heckel David GHeidel Andrew JVogel HeikoGroot Astrid T<p>Abstract</p> <p>Background</p> <p>The chemical components of sex pheromones have been determined for more than a thousand moth species, but so far only a handful of genes encoding enzymes responsible for the biosynthesis of these compounds have been identified. For understanding the evolution of moth sexual communication, it is essential to know which genes are involved in the production of specific pheromone components and what controls the variation in their relative frequencies in the pheromone blend. We used a transcriptomic approach to characterize the pheromone gland of the Noctuid moth <it>Heliothis virescens</it>, an important agricultural pest, in order to obtain substantial general sequence information and to identify a range of candidate genes involved in the pheromone biosynthetic pathway.</p> <p>Results</p> <p>To facilitate identifying sets of genes involved in a broad range of processes and to capture rare transcripts, we developed our majority of ESTs from a normalized cDNA library of <it>Heliothis virescens </it>pheromone glands (PG). Combining these with a non-normalized library yielded a total of 17,233 ESTs, which assembled into 2,082 contigs and 6,228 singletons. Using BLAST searches of the NR and Swissprot databases we were able to identify a large number of putative unique gene elements (unigenes), which we compared to those derived from previous transcriptomic surveys of the larval stage of <it>Heliothis virescens</it>. The distribution of unigenes among GO Biological Process functional groups shows an overall similarity between PG and larval transcriptomes, but with distinct enrichment of specific pathways in the PG. In addition, we identified a large number of candidate genes in the pheromone biosynthetic pathways.</p> <p>Conclusion</p> <p>These data constitute one of the first large-scale EST-projects for Noctuidae, a much-needed resource for exploring these pest species. Our analysis shows a surprisingly complex transcriptome and we identified a large number of potential pheromone biosynthetic pathway and immune-related genes that can be applied to population and systematic studies of <it>Heliothis virescens </it>and other Noctuidae.</p>http://www.biomedcentral.com/1471-2164/11/29
spellingShingle Heckel David G
Heidel Andrew J
Vogel Heiko
Groot Astrid T
Transcriptome analysis of the sex pheromone gland of the noctuid moth <it>Heliothis virescens</it>
BMC Genomics
title Transcriptome analysis of the sex pheromone gland of the noctuid moth <it>Heliothis virescens</it>
title_full Transcriptome analysis of the sex pheromone gland of the noctuid moth <it>Heliothis virescens</it>
title_fullStr Transcriptome analysis of the sex pheromone gland of the noctuid moth <it>Heliothis virescens</it>
title_full_unstemmed Transcriptome analysis of the sex pheromone gland of the noctuid moth <it>Heliothis virescens</it>
title_short Transcriptome analysis of the sex pheromone gland of the noctuid moth <it>Heliothis virescens</it>
title_sort transcriptome analysis of the sex pheromone gland of the noctuid moth it heliothis virescens it
url http://www.biomedcentral.com/1471-2164/11/29
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