<it>De novo </it>assembly and characterization of the carrot transcriptome reveals novel genes, new markers, and genetic diversity
<p>Abstract</p> <p>Background</p> <p>Among next generation sequence technologies, platforms such as Illumina and SOLiD produce short reads but with higher coverage and lower cost per sequenced nucleotide than 454 or Sanger. A challenge now is to develop efficient strate...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
BMC
2011-08-01
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| Series: | BMC Genomics |
| Online Access: | http://www.biomedcentral.com/1471-2164/12/389 |
| _version_ | 1818528751303000064 |
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| author | Matvienko Marta Cavagnaro Pablo F Bowman Megan Grzebelus Dariusz Senalik Douglas A Iorizzo Massimo Ashrafi Hamid Van Deynze Allen Simon Philipp W |
| author_facet | Matvienko Marta Cavagnaro Pablo F Bowman Megan Grzebelus Dariusz Senalik Douglas A Iorizzo Massimo Ashrafi Hamid Van Deynze Allen Simon Philipp W |
| author_sort | Matvienko Marta |
| collection | DOAJ |
| description | <p>Abstract</p> <p>Background</p> <p>Among next generation sequence technologies, platforms such as Illumina and SOLiD produce short reads but with higher coverage and lower cost per sequenced nucleotide than 454 or Sanger. A challenge now is to develop efficient strategies to use short-read length platforms for <it>de novo </it>assembly and marker development. The scope of this study was to develop a <it>de novo </it>assembly of carrot ESTs from multiple genotypes using the Illumina platform, and to identify polymorphisms.</p> <p>Results</p> <p>A <it>de novo </it>assembly of transcriptome sequence from four genetic backgrounds produced 58,751 contigs and singletons. Over 50% of these assembled sequences were annotated allowing detection of transposable elements and new carrot anthocyanin genes. Presence of multiple genetic backgrounds in our assembly allowed the identification of 114 computationally polymorphic SSRs, and 20,058 SNPs at a depth of coverage of 20× or more. Polymorphisms were predominantly between inbred lines except for the cultivated x wild RIL pool which had high intra-sample polymorphism. About 90% and 88% of tested SSR and SNP primers amplified a product, of which 70% and 46%, respectively, were of the expected size. Out of verified SSR and SNP markers 84% and 82% were polymorphic. About 25% of SNPs genotyped were polymorphic in two diverse mapping populations.</p> <p>Conclusions</p> <p>This study confirmed the potential of short read platforms for <it>de novo </it>EST assembly and identification of genetic polymorphisms in carrot. In addition we produced the first large-scale transcriptome of carrot, a species lacking genomic resources.</p> |
| first_indexed | 2024-12-11T06:54:04Z |
| format | Article |
| id | doaj.art-1312dd46ca244ec1a8f91eb4e3bd5c9b |
| institution | Directory Open Access Journal |
| issn | 1471-2164 |
| language | English |
| last_indexed | 2024-12-11T06:54:04Z |
| publishDate | 2011-08-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Genomics |
| spelling | doaj.art-1312dd46ca244ec1a8f91eb4e3bd5c9b2022-12-22T01:16:48ZengBMCBMC Genomics1471-21642011-08-0112138910.1186/1471-2164-12-389<it>De novo </it>assembly and characterization of the carrot transcriptome reveals novel genes, new markers, and genetic diversityMatvienko MartaCavagnaro Pablo FBowman MeganGrzebelus DariuszSenalik Douglas AIorizzo MassimoAshrafi HamidVan Deynze AllenSimon Philipp W<p>Abstract</p> <p>Background</p> <p>Among next generation sequence technologies, platforms such as Illumina and SOLiD produce short reads but with higher coverage and lower cost per sequenced nucleotide than 454 or Sanger. A challenge now is to develop efficient strategies to use short-read length platforms for <it>de novo </it>assembly and marker development. The scope of this study was to develop a <it>de novo </it>assembly of carrot ESTs from multiple genotypes using the Illumina platform, and to identify polymorphisms.</p> <p>Results</p> <p>A <it>de novo </it>assembly of transcriptome sequence from four genetic backgrounds produced 58,751 contigs and singletons. Over 50% of these assembled sequences were annotated allowing detection of transposable elements and new carrot anthocyanin genes. Presence of multiple genetic backgrounds in our assembly allowed the identification of 114 computationally polymorphic SSRs, and 20,058 SNPs at a depth of coverage of 20× or more. Polymorphisms were predominantly between inbred lines except for the cultivated x wild RIL pool which had high intra-sample polymorphism. About 90% and 88% of tested SSR and SNP primers amplified a product, of which 70% and 46%, respectively, were of the expected size. Out of verified SSR and SNP markers 84% and 82% were polymorphic. About 25% of SNPs genotyped were polymorphic in two diverse mapping populations.</p> <p>Conclusions</p> <p>This study confirmed the potential of short read platforms for <it>de novo </it>EST assembly and identification of genetic polymorphisms in carrot. In addition we produced the first large-scale transcriptome of carrot, a species lacking genomic resources.</p>http://www.biomedcentral.com/1471-2164/12/389 |
| spellingShingle | Matvienko Marta Cavagnaro Pablo F Bowman Megan Grzebelus Dariusz Senalik Douglas A Iorizzo Massimo Ashrafi Hamid Van Deynze Allen Simon Philipp W <it>De novo </it>assembly and characterization of the carrot transcriptome reveals novel genes, new markers, and genetic diversity BMC Genomics |
| title | <it>De novo </it>assembly and characterization of the carrot transcriptome reveals novel genes, new markers, and genetic diversity |
| title_full | <it>De novo </it>assembly and characterization of the carrot transcriptome reveals novel genes, new markers, and genetic diversity |
| title_fullStr | <it>De novo </it>assembly and characterization of the carrot transcriptome reveals novel genes, new markers, and genetic diversity |
| title_full_unstemmed | <it>De novo </it>assembly and characterization of the carrot transcriptome reveals novel genes, new markers, and genetic diversity |
| title_short | <it>De novo </it>assembly and characterization of the carrot transcriptome reveals novel genes, new markers, and genetic diversity |
| title_sort | it de novo it assembly and characterization of the carrot transcriptome reveals novel genes new markers and genetic diversity |
| url | http://www.biomedcentral.com/1471-2164/12/389 |
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