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Comparative Study
. 2013 Dec 13;14(12):R134.
doi: 10.1186/gb-2013-14-12-r134.

TRAPID: an efficient online tool for the functional and comparative analysis of de novo RNA-Seq transcriptomes

Comparative Study

TRAPID: an efficient online tool for the functional and comparative analysis of de novo RNA-Seq transcriptomes

Michiel Van Bel et al. Genome Biol. .

Abstract

Transcriptome analysis through next-generation sequencing technologies allows the generation of detailed gene catalogs for non-model species, at the cost of new challenges with regards to computational requirements and bioinformatics expertise. Here, we present TRAPID, an online tool for the fast and efficient processing of assembled RNA-Seq transcriptome data, developed to mitigate these challenges. TRAPID offers high-throughput open reading frame detection, frameshift correction and includes a functional, comparative and phylogenetic toolbox, making use of 175 reference proteomes. Benchmarking and comparison against state-of-the-art transcript analysis tools reveals the efficiency and unique features of the TRAPID system. TRAPID is freely available at http://bioinformatics.psb.ugent.be/webtools/trapid/.

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Figures

Figure 1
Figure 1
Schematic overview of the TRAPID pipeline. The TRAPID pipeline consists of two separate steps. The first one is a non-interactive processing step, during which all transcripts are assigned to gene families using a RAPSearch2 similarity search, followed by functional annotation transfer and meta-annotation assignment. The second step is interactive and directly commanded through the website interface. Here, the user has the ability to analyze his data using functional enrichment analyses, multiple sequence alignments, and phylogenetic trees.
Figure 2
Figure 2
Visualization of a phylogenetic tree with associated meta-annotation labels per transcript. Cladogram based on a FastTree2 phylogenetic tree for the alpha/beta-Hydrolases superfamily (based on PLAZA 2.5 gene family HOM002165). Transcripts are marked in black, while colored gene identifiers refer to homologs from reference species: Ostreococcus tauri (ota), Physcomitrella patens (ppa), Populus trichocarpa (ptr), Arabidopsis thaliana (ath), Oryza sativa ssp. Japonica (osa), Sorghum bicolor (sbo), and Zea mays (zma). Meta-annotation for the different transcripts is visualized using the colored boxes on the right.

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