The Eimeria Transcript DB: an integrated resource for annotated transcripts of protozoan parasites of the genus Eimeria

Parasites of the genus Eimeria infect a wide range of vertebrate hosts, including chickens. We have recently reported a comparative analysis of the transcriptomes of Eimeria acervulina, Eimeria maxima and Eimeria tenella, integrating ORESTES data produced by our group and publicly available Expressed Sequence Tags (ESTs). All cDNA reads have been assembled, and the reconstructed transcripts have been submitted to a comprehensive functional annotation pipeline. Additional studies included orthology assignment across apicomplexan parasites and clustering analyses of gene expression profiles among different developmental stages of the parasites. To make all this body of information publicly available, we constructed the Eimeria Transcript Database (EimeriaTDB), a web repository that provides access to sequence data, annotation and comparative analyses. Here, we describe the web interface, available sequence data sets and query tools implemented on the site. The main goal of this work is to offer a public repository of sequence and functional annotation data of reconstructed transcripts of parasites of the genus Eimeria. We believe that EimeriaTDB will represent a valuable and complementary resource for the Eimeria scientific community and for those researchers interested in comparative genomics of apicomplexan parasites. Database URL: http://www.coccidia.icb.usp.br/eimeriatdb/

[1]  Yutaka Suzuki,et al.  Characterisation of full-length cDNA sequences provides insights into the Eimeria tenellatranscriptome , 2012, BMC Genomics.

[2]  M. Quail,et al.  Sequencing and analysis of chromosome 1 of Eimeria tenella reveals a unique segmental organization. , 2007, Genome research.

[3]  Damian Szklarczyk,et al.  eggNOG v2.0: extending the evolutionary genealogy of genes with enhanced non-supervised orthologous groups, species and functional annotations , 2009, Nucleic Acids Res..

[4]  K. Miska,et al.  ANALYSIS OF TRANSCRIPTS EXPRESSED BY EIMERIA TENELLA OOCYSTS USING SUBTRACTIVE HYBRIDIZATION METHODS , 2004, The Journal of parasitology.

[5]  K. Miska,et al.  Coccidian Merozoite Transcriptome Analysis from Eimeria maxima in Comparison to Eimeria tenella and Eimeria acervulina , 2010, The Journal of parasitology.

[6]  Chris Mungall,et al.  A Chado case study: an ontology-based modular schema for representing genome-associated biological information , 2007, ISMB/ECCB.

[7]  Christian E. V. Storm,et al.  Automatic clustering of orthologs and in-paralogs from pairwise species comparisons. , 2001, Journal of molecular biology.

[8]  Adrian L. Smith,et al.  The biology of avian Eimeria with an emphasis on their control by vaccination. , 2005, Advances in parasitology.

[9]  R. Williams A compartmentalised model for the estimation of the cost of coccidiosis to the world's chicken production industry. , 1999, International journal for parasitology.

[10]  Jessica C Kissinger,et al.  Gene discovery in the apicomplexa as revealed by EST sequencing and assembly of a comparative gene database. , 2003, Genome research.

[11]  Narmada Thanki,et al.  CDD: a Conserved Domain Database for the functional annotation of proteins , 2010, Nucleic Acids Res..

[12]  N. Mulder,et al.  InterPro and InterProScan: tools for protein sequence classification and comparison. , 2007, Methods in molecular biology.

[13]  M. Shirley,et al.  The genome of Eimeria spp., with special reference to Eimeria tenella--a coccidium from the chicken. , 2000, International journal for parasitology.

[14]  Susumu Goto,et al.  KEGG for integration and interpretation of large-scale molecular data sets , 2011, Nucleic Acids Res..

[15]  A. Krogh,et al.  A combined transmembrane topology and signal peptide prediction method. , 2004, Journal of molecular biology.

[16]  K. Wan,et al.  A survey of genes in Eimeria tenella merozoites by EST sequencing. , 1999, International journal for parasitology.

[17]  K. Wan,et al.  Comparative EST analyses provide insights into gene expression in two asexual developmental stages of Eimeria tenella. , 2002, Experimental parasitology.

[18]  Darren A. Natale,et al.  The COG database: an updated version includes eukaryotes , 2003, BMC Bioinformatics.

[19]  Rolf Apweiler,et al.  InterPro and InterProScan , 2007 .

[20]  K. Miska,et al.  Analysis of Transcripts from Intracellular Stages of Eimeria acervulina Using Expressed Sequence Tags , 2008, The Journal of parasitology.

[21]  K. Wan,et al.  EmaxDB: Availability of a first draft genome sequence for the apicomplexan Eimeria maxima. , 2012, Molecular and biochemical parasitology.

[22]  S. Lewis,et al.  The generic genome browser: a building block for a model organism system database. , 2002, Genome research.

[23]  Philippa Rhodes,et al.  ApiDB: integrated resources for the apicomplexan bioinformatics resource center , 2006, Nucleic Acids Res..

[24]  J. Claverie,et al.  The significance of digital gene expression profiles. , 1997, Genome research.

[25]  André Yoshiaki Kashiwabara,et al.  EGene: a configurable pipeline generation system for automated sequence analysis , 2005, Bioinform..

[26]  Haiming Wang,et al.  GeneDB—an annotation database for pathogens , 2011, Nucleic Acids Res..

[27]  Kim Rutherford,et al.  Artemis: sequence visualization and annotation , 2000, Bioinform..

[28]  Erik L. L. Sonnhammer,et al.  InParanoid 7: new algorithms and tools for eukaryotic orthology analysis , 2009, Nucleic Acids Res..

[29]  M. Ashburner,et al.  Gene Ontology: tool for the unification of biology , 2000, Nature Genetics.

[30]  Chris Mungall,et al.  AmiGO: online access to ontology and annotation data , 2008, Bioinform..

[31]  L. Varuzza,et al.  A comparative transcriptome analysis reveals expression profiles conserved across three Eimeria spp. of domestic fowl and associated with multiple developmental stages. , 2012, International journal for parasitology.