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Paajanen P, Strauss J, van Oosterhout C, et al. Building a locally diploid genome and transcriptome of the diatom Fragilariopsis cylindrus. Sci Data. 2017;4:170149doi: 10.1038/sdata.2017.149.
Paajanen, P., Strauss, J., van Oosterhout, C., McMullan, M., Clark, M. D., & Mock, T. (2017). Building a locally diploid genome and transcriptome of the diatom Fragilariopsis cylindrus. Scientific data, 4170149. https://doi.org/10.1038/sdata.2017.149
Paajanen, Pirita, et al. "Building a locally diploid genome and transcriptome of the diatom Fragilariopsis cylindrus." Scientific data vol. 4 (2017): 170149. doi: https://doi.org/10.1038/sdata.2017.149
Paajanen P, Strauss J, van Oosterhout C, McMullan M, Clark MD, Mock T. Building a locally diploid genome and transcriptome of the diatom Fragilariopsis cylindrus. Sci Data. 2017 Oct 10;4:170149. doi: 10.1038/sdata.2017.149. PMID: 28994819; PMCID: PMC5634323.
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Sci Data. 2017 Oct 10;4:170149. doi: 10.1038/sdata.2017.149.

Building a locally diploid genome and transcriptome of the diatom Fragilariopsis cylindrus.

Scientific data

Pirita Paajanen, Jan Strauss, Cock van Oosterhout, Mark McMullan, Matthew D Clark, Thomas Mock

Affiliations

  1. Department of Cell and Developmental Biology, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK.
  2. European Molecular Biology Laboratory (EMBL) Hamburg, c/o German Electron Synchrotron (DESY), Notkestraße 85, 22607 Hamburg, Germany.
  3. School of Environmental Sciences, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK.
  4. Earlham Institute, Norwich Research Park, Norwich NR4 7HU, UK.

PMID: 28994819 PMCID: PMC5634323 DOI: 10.1038/sdata.2017.149

Abstract

The genome of the cold-adapted diatom Fragilariopsis cylindrus is characterized by highly diverged haplotypes that intersperse its homozygous genome. Here, we describe how a combination of PacBio DNA and Illumina RNA sequencing can be used to resolve this complex genomic landscape locally into the highly diverged haplotypes, and how to map various environmentally controlled transcripts onto individual haplotypes. We assembled PacBio sequence data with the FALCON assembler and created a haplotype resolved annotation of the assembly using annotations of a Sanger sequenced F. cylindrus genome. RNA-seq datasets from six different growth conditions were used to resolve allele-specifc gene expression in F. cylindrus. This approach enables to study differential expression of alleles in a complex genomic landscape and provides a useful tool to study how diverged haplotypes in diploid organisms are used for adaptation and evolution to highly variable environments.

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