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Document Type

Journal Article

Department/Unit

Department of Biology

Title

PcarnBase: Development of a transcriptomic database for the brain coral platygyra carnosus

Language

English

Abstract

The aims of this study were to sequence the transcriptome and organize the sequence data into a searchable database for the brain coral Platygyra carnosus, a structure-forming dominant species along the coast of southern China. We collected healthy and tumorous coral tissues from two locations, extracted RNA from each tissue sample, pooled the RNA from all tissue samples, generated a cDNA library from the pooled samples, and conducted paired-end sequencing of the cDNA library using the Illumina platform to produce 59. 6 M clean sequences with a read length of 90 bp. De novo assembly of the sequence data resulted in 162,468 unigenes with an average length of 606 bp (range, 201 to 23,923 bp). This is the largest transcriptome dataset for a species of coral whose genome has not been sequenced. A BLASTx search against the NCBI protein database showed that 55,355 of the unigenes matched at least a sequence with an E-value of < 0. 00001; 59 % of the matched sequences are from Metazoa, 13 % are from Alveolata to which the symbiont Symbiodinium belongs, and 7 % are from bacteria. A database (PcarnBase) was constructed to provide easy access to the unigenes with attributes such as NCBI protein annotation, GO annotation, and KEGG pathway. It will facilitate functional genomic studies of P. carnosus, such as biomarker discovery for bleaching, tumor formation, and disease development at the gene or protein level, involvement of coral symbiotic algae in the host coral's stress responses, and genetic basis of stress resistance. © 2012 Springer Science+Business Media, LLC.

Keywords

Coral, Database, Next-generation sequencing, Platygyra, Transcriptome

Publication Date

2013

Source Publication Title

Marine Biotechnology

Volume

15

Issue

2

Start Page

244

End Page

251

Publisher

Springer Verlag

ISSN (print)

14362228

ISSN (electronic)

14362236

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