Journal
SCIENTIFIC REPORTS
Volume 6, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/srep26314
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Funding
- PhD student fellowship from Fonds voor Wetenschappelijk Onderzoek Vlaanderen
- Fonds voor Wetenschappelijk Onderzoek Vlaanderen [3G052412]
- VIB TechWatch
- Ghent University Special Research Grant [BOF12/GOA/014]
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Green fluorescent protein (GFP) is one of the most used reporter genes. We have used next-generation sequencing (NGS) to analyse the genetic diversity of a recombinant influenza A virus that expresses GFP and found a remarkable coverage dip in the GFP coding sequence. This coverage dip was present when virus-derived RT-PCR product or the parental plasmid DNA was used as starting material for NGS and regardless of whether Nextera XT transposase or Covaris shearing was used for DNA fragmentation. Therefore, the sequence coverage dip in the GFP coding sequence was not the result of emerging GFP mutant viruses or a bias introduced by Nextera XT fragmentation. Instead, we found that the Illumina MiSeq sequencing method disfavours the 'CCCGCC' motif in the GFP coding sequence.
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