The characterization of the Phlebotomus papatasi transcriptome

Abrudan, J and Ramalho-Ortigão, M and O'Neil, S and Stayback, G and Wadsworth, M and Bernard, M and Shoue, D and Emrich, S and Lawyer, P and Kamhawi, S and Rowton, E D and Lehane, M J and Bates, P A and Valenzeula, J G and Tomlinson, C and Appelbaum, E and Moeller, D and Thiesing, B and Dillon, R and Clifton, S and Lobo, N F and Wilson, R K and Collins, F H and McDowell, M A (2013) The characterization of the Phlebotomus papatasi transcriptome. Insect Molecular Biology, 22 (2). pp. 211-232. ISSN 1365-2583

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As important vectors of human disease, phlebotomine sand flies are of global significance to human health, transmitting several emerging and re-emerging infectious diseases. The most devastating of the sand fly transmitted infections are the leishmaniases, causing significant mortality and morbidity in both the Old and New World. Here we present the first global transcriptome analysis of the Old World vector of cutaneous leishmaniasis, Phlebotomus papatasi (Scopoli) and compare this transcriptome to that of the New World vector of visceral leishmaniasis, Lutzomyia longipalpis. A normalized cDNA library was constructed using pooled mRNA from Phlebotomus papatasi larvae, pupae, adult males and females fed sugar, blood, or blood infected with Leishmania major. A total of 47 615 generated sequences was cleaned and assembled into 17 120 unique transcripts. Of the assembled sequences, 50% (8837 sequences) were classified using Gene Ontology (GO) terms. This collection of transcripts is comprehensive, as demonstrated by the high number of different GO categories. An in-depth analysis revealed 245 sequences with putative homology to proteins involved in blood and sugar digestion, immune response and peritrophic matrix formation. Twelve of the novel genes, including one trypsin, two peptidoglycan recognition proteins (PGRP) and nine chymotrypsins, have a higher expression level during larval stages. Two novel chymotrypsins and one novel PGRP are abundantly expressed upon blood feeding. This study will greatly improve the available genomic resources for P. papatasi and will provide essential information for annotation of the full genome.

Item Type:
Journal Article
Journal or Publication Title:
Insect Molecular Biology
Additional Information:
Published 2013. This article is a U.S. Government work and is in the public domain in the USA.
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Deposited On:
05 Mar 2013 14:29
Last Modified:
20 Sep 2023 00:27