Parasitic nematodes infect over half the world's population, resulting in significant morbidity and mortality. Characterization of nematode genomes provides fundamental molecular information about these parasites accelerating both basic research as well as the development of effective diagnostics, vaccines, and new drugs. After completing the C. elegans genome, Washington University's Genome Sequencing Center (GSC) has generated and immediately made public over 210,000 expressed sequence tags (ESTs) from 25 nematode species, including representatives of all the major groups of human parasites such as hookworms, filarial worms, whipworms, and Ascarids. This application seeks to extend the available parasitic nematode sequence data and enhance its value to the research community through three aims. First, we will generate 125,000 new sequences from parasitic nematodes for less than half the cost per read of our original 1999 proposal. Sequencing efforts will focus on normalized libraries from the prevalent human and animal geohelminths Ascaris and hookworm that together infect over 2 billion people with the goal of identifying over half of the genes in each species. An Ascaris microarray will be produced and used to examine differences in gene expression over embryogenesis and in adult organs. Second, we will use nematode.net and wormbase.org to provide the parasitology community with bioinformatics databases and tools that are user-friendly, integrated, and lasting. Features to be created or expanded include the NemaGene cluster consensus sequences assembled from all available nematode sequence data, the NemPep database of nematode peptide sequences, Gene Ontology and Interpro protein domain classifications, and codon usage tables. In addition to its use by parasitologists, the availability of such information will provide important evolutionary context to developmental and genetic studies in the model C. elegans. Third, we will investigate novel areas of nematode biology by identifying nematode-specific protein domains with currently unknown functions. Regions of NemaGene sequences lacking Interpro domain coverage will be clustered and aligned by amino acid sequence to create new candidate domains with the goal of generating 250 novel high quality domain models for submission to Pfam/Interpro. Working with collaborators, a limited number of novel domains will be characterized in more detail with an emphasis on postulating molecular or cellular function.

Agency
National Institute of Health (NIH)
Institute
National Institute of Allergy and Infectious Diseases (NIAID)
Type
Research Project--Cooperative Agreements (U01)
Project #
5U01AI046593-05
Application #
6857087
Study Section
Special Emphasis Panel (ZAI1-AC-M (J3))
Program Officer
Rogers, Martin J
Project Start
2000-03-15
Project End
2008-02-28
Budget Start
2005-03-01
Budget End
2006-02-28
Support Year
5
Fiscal Year
2005
Total Cost
$612,104
Indirect Cost
Name
Washington University
Department
Genetics
Type
Schools of Medicine
DUNS #
068552207
City
Saint Louis
State
MO
Country
United States
Zip Code
63130
Martin, John; Abubucker, Sahar; Wylie, Todd et al. (2009) Nematode.net update 2008: improvements enabling more efficient data mining and comparative nematode genomics. Nucleic Acids Res 37:D571-8
Mitreva, Makedonka; Mardis, Elaine R (2009) Large-scale sequencing and analytical processing of ESTs. Methods Mol Biol 533:153-87
Abubucker, Sahar; Zarlenga, Dante S; Martin, John et al. (2009) The transcriptomes of the cattle parasitic nematode Ostertagia ostartagi. Vet Parasitol 162:89-99
Mitreva, Makedonka; Smant, Geert; Helder, Johannes (2009) Role of horizontal gene transfer in the evolution of plant parasitism among nematodes. Methods Mol Biol 532:517-35
Wang, Zhengyuan; Martin, John; Abubucker, Sahar et al. (2009) Systematic analysis of insertions and deletions specific to nematode proteins and their proposed functional and evolutionary relevance. BMC Evol Biol 9:23
Elling, Axel A; Mitreva, Makedonka; Gai, Xiaowu et al. (2009) Sequence mining and transcript profiling to explore cyst nematode parasitism. BMC Genomics 10:58
Haegeman, Annelies; Jacob, Joachim; Vanholme, Bartel et al. (2009) Expressed sequence tags of the peanut pod nematode Ditylenchus africanus: the first transcriptome analysis of an Anguinid nematode. Mol Biochem Parasitol 167:32-40
Roze, Erwin; Hanse, Bram; Mitreva, Makedonka et al. (2008) Mining the secretome of the root-knot nematode Meloidogyne chitwoodi for candidate parasitism genes. Mol Plant Pathol 9:1-10
Abubucker, Sahar; Martin, John; Yin, Yong et al. (2008) The canine hookworm genome: analysis and classification of Ancylostoma caninum survey sequences. Mol Biochem Parasitol 157:187-92
Wylie, Todd; Martin, John; Abubucker, Sahar et al. (2008) NemaPath: online exploration of KEGG-based metabolic pathways for nematodes. BMC Genomics 9:525

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