Hybrid selection for sequencing pathogen genomes from clinical samples

从临床样本中测序病原体基因组的杂交选择

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作者:Alexandre Melnikov, Kevin Galinsky, Peter Rogov, Timothy Fennell, Daria Van Tyne, Carsten Russ, Rachel Daniels, Kayla G Barnes, James Bochicchio, Daouda Ndiaye, Papa D Sene, Dyann F Wirth, Chad Nusbaum, Sarah K Volkman, Bruce W Birren, Andreas Gnirke, Daniel E Neafsey

Abstract

We have adapted a solution hybrid selection protocol to enrich pathogen DNA in clinical samples dominated by human genetic material. Using mock mixtures of human and Plasmodium falciparum malaria parasite DNA as well as clinical samples from infected patients, we demonstrate an average of approximately 40-fold enrichment of parasite DNA after hybrid selection. This approach will enable efficient genome sequencing of pathogens from clinical samples, as well as sequencing of endosymbiotic organisms such as Wolbachia that live inside diverse metazoan phyla.

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