Miller, J. R., Zhou, P., Mudge, J., Gurtowski, J., Lee, H., Ramaraj, T., Walenz, B. P., Liu, J., Stupar, R. M., Denny, R., Song, L., Singh, N., Maron, L. G., McCouch, S. R., McCombie, W. R., Schatz, M. C., Tiffin, P., Young, N. D., Silverstein, K. A. T. (July 2017) Hybrid assembly with long and short reads improves discovery of gene family expansions. BMC Genomics, 18 (1). p. 541. ISSN 1471-2164
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Abstract
BACKGROUND: Long-read and short-read sequencing technologies offer competing advantages for eukaryotic genome sequencing projects. Combinations of both may be appropriate for surveys of within-species genomic variation. METHODS: We developed a hybrid assembly pipeline called "Alpaca" that can operate on 20X long-read coverage plus about 50X short-insert and 50X long-insert short-read coverage. To preclude collapse of tandem repeats, Alpaca relies on base-call-corrected long reads for contig formation. RESULTS: Compared to two other assembly protocols, Alpaca demonstrated the most reference agreement and repeat capture on the rice genome. On three accessions of the model legume Medicago truncatula, Alpaca generated the most agreement to a conspecific reference and predicted tandemly repeated genes absent from the other assemblies. CONCLUSION: Our results suggest Alpaca is a useful tool for investigating structural and copy number variation within de novo assemblies of sampled populations.
| Item Type: | Paper |
|---|---|
| Uncontrolled Keywords: | Genome assembly Hybrid assembly pipeline Medicago truncatula Tandem repeats |
| Subjects: | bioinformatics bioinformatics > genomics and proteomics > genetics & nucleic acid processing > genomes > de novo assembly Investigative techniques and equipment > assays > next generation sequencing bioinformatics > genomics and proteomics > analysis and processing > reference assembly |
| CSHL Authors: | |
| Communities: | CSHL Cancer Center Program > Cancer Genetics CSHL labs > McCombie lab CSHL labs > Schatz lab CSHL Cancer Center Program > Cancer Genetics and Genomics Program |
| Depositing User: | Matt Covey |
| Date: | 19 July 2017 |
| Date Deposited: | 21 Jul 2017 20:57 |
| Last Modified: | 05 Nov 2020 14:53 |
| PMCID: | PMC5518131 |
| Related URLs: | |
| URI: | https://repository.cshl.edu/id/eprint/35071 |
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