Evidence map›Paper›PMID 23497448›Full record

ArticleParasites & vectors2013

Transcriptome exploration of the sex pheromone gland of Lutzomyia longipalpis (Diptera: Psychodidae: Phlebotominae).

Natalia González-Caballero, Jesus G Valenzuela, José M C Ribeiro, Patricia Cuervo, Reginaldo P Brazil

Open access · goldAbstract read
In one paragraph

Article in Parasites & vectors, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
2.9field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 26 citations in OpenAlex.

  1. Review
  2. Lipid Metabolism in Insect Vectors of Diseases.Advances in experimental medicine and biology · 2026
    Review
  3. A diterpene synthase from the sandflyProceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  4. Article
  5. Biological effects ofFrontiers in cellular and infection microbiology · 2023
    Article
  6. Article
  7. Review
  8. Novel family of terpene synthases evolved from trans-isoprenyl diphosphate synthases in a flea beetle.Proceedings of the National Academy of Sciences of the United States of America · 2016
    Article
  9. Article
  10. Article
  11. Article
  12. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 2 countries.

Natalia González-CaballeroLaboratório de Bioquímica e Fisiologia de Insetos, IOC, FIOCRUZ, Av, Brasil 4365, Manguinhos, Pav, Leônidas Deane, Sala 213, Rio de Janeiro, RJ, CEP: 21040-360, Brasil.
Jesus G Valenzuela
José M C Ribeiro
Patricia Cuervo
Reginaldo P Brazil
Fundação Oswaldo Cruz · BRVector Oncology (United States) · US

Funding

Molecular approaches to understand vector-host and vector-pathogen interactionsZIAAI000932 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI VALENZUELA, JESUS · 2009 to 2025
$23.1M
Vector-Borne Diseases: Biology Of Vector Host RelationshipZIAAI000810 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI RIBEIRO, JOSE · 2009 to 2025
$20.8M
Intramural NIH HHS
6 · The paper itself

Abstract

backgroundMolecules involved in pheromone biosynthesis may represent alternative targets for insect population control. This may be particularly useful in managing the reproduction of Lutzomyia longipalpis, the main vector of the protozoan parasite Leishmania infantum in Latin America. Besides the chemical identity of the major components of the L. longipalpis sex pheromone, there is no information regarding the molecular biology behind its production. To understand this process, obtaining information on which genes are expressed in the pheromone gland is essential.

methodsIn this study we used a transcriptomic approach to explore the pheromone gland and adjacent abdominal tergites in order to obtain substantial general sequence information. We used a laboratory-reared L. longipalpis (one spot, 9-Methyl GermacreneB) population, captured in Lapinha Cave, state of Minas Gerais, Brazil for this analysis.

resultsFrom a total of 3,547 cDNA clones, 2,502 high quality sequences from the pheromone gland and adjacent tissues were obtained and assembled into 1,387 contigs. Through blast searches of public databases, a group of transcripts encoding proteins potentially involved in the production of terpenoid precursors were identified in the 4th abdominal tergite, the segment containing the pheromone gland. Among them, protein-coding transcripts for four enzymes of the mevalonate pathway such as 3-hydroxyl-3-methyl glutaryl CoA reductase, phosphomevalonate kinase, diphosphomevalonate descarboxylase, and isopentenyl pyrophosphate isomerase were identified. Moreover, transcripts coding for farnesyl diphosphate synthase and NADP+ dependent farnesol dehydrogenase were also found in the same tergite. Additionally, genes potentially involved in pheromone transportation were identified from the three abdominal tergites analyzed.

conclusionThis study constitutes the first transcriptomic analysis exploring the repertoire of genes expressed in the tissue containing the L. longipalpis pheromone gland as well as the flanking tissues. Using a comparative approach, a set of molecules potentially present in the mevalonate pathway emerge as interesting subjects for further study regarding their association to pheromone biosynthesis. The sequences presented here may be used as a reference set for future research on pheromone production or other characteristics of pheromone communication in this insect. Moreover, some matches for transcripts of unknown function may provide fertile ground of an in-depth study of pheromone-gland specific molecules.

Indexed as

TranscriptomeAnimalsBiosynthetic PathwaysBrazilExocrine GlandsMalePheromonesPsychodidaePheromones

Identifiers

PMID23497448
PMCPMC3632494
OpenAlexW2100345925

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.