Sequence Assembly of Yarrowia lipolytica Strain W29/CLIB89 Shows Transposable Element Diversity
Sequence Assembly of Yarrowia lipolytica Strain W29/CLIB89 Shows Transposable Element Diversity
Yarrowia lipolytica, an oleaginous yeast, is capable of accumulating significant cellular mass in lipid making it an important source of biosustainable hydrocarbon-based chemicals. In spite of a similar number of protein-coding genes to that in other Hemiascomycetes, the Y. lipolytica genome is almost double that of model yeasts. Despite its economic importance and several distinct strains in common use, an independent genome assembly exists for only one strain. We report here a de novo annotated assembly of the chromosomal genome of an industrially-relevant strain, W29/CLIB89, determined by hybrid next-generation sequencing. For the first time, each Y. lipolytica chromosome is represented by a single contig. The telomeric rDNA repeats were localized by Irys long-range genome mapping and one complete copy of the rDNA sequence is reported. Two large structural variants and retroelement differences with reference strain CLIB122 including a full-length, novel Ty3/Gypsy long terminal repeat (LTR) retrotransposon and multiple LTR-like sequences are described. Strikingly, several of these are adjacent to RNA polymerase III-transcribed genes, which are almost double in number in Y. lipolytica compared to other Hemiascomycetes. In addition to previously-reported dimeric RNA polymerase III-transcribed genes, tRNA pseudogenes were identified. Multiple full-length and truncated LINE elements are also present. Therefore, although identified transposons do not constitute a significant fraction of the Y. lipolytica genome, they could have played an active role in its evolution. Differences between the sequence of this strain and of the existing reference strain underscore the utility of an additional independent genome assembly for this economically important organism.
- Iowa State University United States
- Université de Strasbourg France
- UNIVERSITE DE STRASBOURG France
- University of California, Irvine United States
- UNIVERSITE DE STRASBOURG France
570, Retroelements, General Science & Technology, Science, Bioinformatics and Computational Biology, 610, Yarrowia, Microbiology, Chromosomes, Genetics, Base Sequence, Human Genome, Q, Bacterial, R, Terminal Repeat Sequences, Genetic Variation, Molecular Sequence Annotation, DNA, Sequence Analysis, DNA, Biological Sciences, Fungal, Genes, Genes, Bacterial, DNA Transposable Elements, Medicine, Chromosomes, Fungal, Sequence Analysis, Biotechnology, Research Article
570, Retroelements, General Science & Technology, Science, Bioinformatics and Computational Biology, 610, Yarrowia, Microbiology, Chromosomes, Genetics, Base Sequence, Human Genome, Q, Bacterial, R, Terminal Repeat Sequences, Genetic Variation, Molecular Sequence Annotation, DNA, Sequence Analysis, DNA, Biological Sciences, Fungal, Genes, Genes, Bacterial, DNA Transposable Elements, Medicine, Chromosomes, Fungal, Sequence Analysis, Biotechnology, Research Article
999 Research products, page 1 of 100
- 2017IsRelatedTo
- 2017IsRelatedTo
- 2018IsRelatedTo
- 2019IsRelatedTo
- 2017IsRelatedTo
- 2017IsRelatedTo
- 2017IsRelatedTo
- 2018IsRelatedTo
- 2019IsRelatedTo
- 2018IsRelatedTo
chevron_left - 1
- 2
- 3
- 4
- 5
chevron_right
citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).77 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Top 1% influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Top 10% impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Top 10%
