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The DOI matches its Crossref record; 14 of the 14 references it cites were found in a registry or an index.

SQANTI: extensive characterization of long-read transcript sequences for quality control in full-length transcriptome identification and quantification

Open access
Tardaguila, Manuel, de la Fuente, Lorena, Marti, Cristina, Pereira, Cécile, Pardo-Palacios, Francisco Jose, del Risco, Hector, Ferrell, Marc, Mellado, Maravillas, Macchietto, Marissa, Verheggen, Kenneth, Edelmann, Mariola, Ezkurdia, Iakes, Vazquez, Jesus, Tress, Michael, Mortazavi, Ali, Martens, Lennart, Rodriguez-Navarro, Susana, Moreno-Manzano, Victoria, Conesa, Ana·2018·Genome Research

Abstract

High-throughput sequencing of full-length transcripts using long reads has paved the way for the discovery of thousands of novel transcripts, even in well-annotated mammalian species. The advances in sequencing technology have created a need for studies and tools that can characterize these novel variants. Here, we present SQANTI, an automated pipeline for the classification of long-read transcripts that can assess the quality of data and the preprocessing pipeline using 47 unique descriptors. We apply SQANTI to a neuronal mouse transcriptome using Pacific Biosciences (PacBio) long reads and illustrate how the tool is effective in characterizing and describing the composition of the full-length transcriptome. We perform extensive evaluation of ToFU PacBio transcripts by PCR to reveal that an important number of the novel transcripts are technical artifacts of the sequencing approach and that SQANTI quality descriptors can be used to engineer a filtering strategy to remove them. Most novel transcripts in this curated transcriptome are novel combinations of existing splice sites, resulting more frequently in novel ORFs than novel UTRs, and are enriched in both general metabolic and neural-specific functions. We show that these new transcripts have a major impact in the correct quantification of transcript levels by state-of-the-art short-read-based quantification algorithms. By comparing our iso-transcriptome with public proteomics databases, we find that alternative isoforms are elusive to proteogenomics detection. SQANTI allows the user to maximize the analytical outcome of long-read technologies by providing the tools to deliver quality-evaluated and curated full-length transcriptomes.

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Crossref · 10.1101/gr.222976.117

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Metadata

Authors
Tardaguila, M., de la Fuente, L., Marti, C., Pereira, C., Pardo-Palacios, F. J., del Risco, H., Ferrell, M., Mellado, M., Macchietto, M., Verheggen, K., Edelmann, M., Ezkurdia, I., Vazquez, J., Tress, M., Mortazavi, A., Martens, L., Rodriguez-Navarro, S., Moreno-Manzano, V., & Conesa, A.
Venue
Genome Research
Published
2018-02-09
Volume
28
Issue
3
Pages
396-411
ISSN
  • 1088-9051 (ISSN-L)
  • 1549-5469
OpenAlex
W2952666313
Cited by
454
References
14
Type
posted content
Language
en
Open access
bronze

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