De novo assembled expressed gene catalog of a fast-growing Eucalyptus tree produced by Illumina mRNA-Seq

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dc.contributor.author Mizrachi, Eshchar
dc.contributor.author Hefer, Charles Amadeus
dc.contributor.author Ranik, Martin
dc.contributor.author Joubert, Fourie
dc.contributor.author Myburg, Alexander Andrew
dc.date.accessioned 2011-02-21T06:52:07Z
dc.date.available 2011-02-21T06:52:07Z
dc.date.issued 2010-12
dc.description.abstract BACKROUND: De novo assembly of transcript sequences produced by short-read DNA sequencing technologies offers a rapid approach to obtain expressed gene catalogs for non-model organisms. A draft genome sequence will be produced in 2010 for a Eucalyptus tree species (E. grandis) representing the most important hardwood fibre crop in the world. Genome annotation of this valuable woody plant and genetic dissection of its superior growth and productivity will be greatly facilitated by the availability of a comprehensive collection of expressed gene sequences from multiple tissues and organs. RESULTS: We present an extensive expressed gene catalog for a commercially grown E. grandis × E. urophylla hybrid clone constructed using only Illumina mRNA-Seq technology and de novo assembly. A total of 18,894 transcriptderived contigs, a large proportion of which represent full-length protein coding genes were assembled and annotated. Analysis of assembly quality, length and diversity show that this dataset represent the most comprehensive expressed gene catalog for any Eucalyptus tree. mRNA-Seq analysis furthermore allowed digital expression profiling of all of the assembled transcripts across diverse xylogenic and non-xylogenic tissues, which is invaluable for ascribing putative gene functions. CONCLUSIONS: De novo assembly of Illumina mRNA-Seq reads is an efficient approach for transcriptome sequencing and profiling in Eucalyptus and other non-model organisms. The transcriptome resource (Eucspresso, http:// eucspresso.bi.up.ac.za/) generated by this study will be of value for genomic analysis of woody biomass production in Eucalyptus and for comparative genomic analysis of growth and development in woody and herbaceous plants. en
dc.identifier.citation Mizrachi, E, Hefer, CA, Ranik, M, Joubert F & Myburg, AA 2010, 'De novo assembled expressed gene catalog of a fast-growing Eucalyptus tree produced by Illumina mRNASeq', BMC Genomics, 11: 681. [http://www.biomedcentral.com/bmcgenomics/] en
dc.identifier.issn 1471-2164
dc.identifier.other 10.1186/1471-2164-11-681
dc.identifier.uri http://hdl.handle.net/2263/15884
dc.language.iso en en_US
dc.publisher BioMed Central en_US
dc.rights © 2010 Mizrachi et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. en_US
dc.subject Eucalyptus trees en
dc.subject.lcsh Genetic transcription en
dc.subject.lcsh Nucleotide sequence en
dc.subject.lcsh Gene libraries en
dc.title De novo assembled expressed gene catalog of a fast-growing Eucalyptus tree produced by Illumina mRNA-Seq en
dc.type Article en


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