5 research outputs found
De-Novo Assembly and Analysis of the Heterozygous Triploid Genome of the Wine Spoilage Yeast Dekkera bruxellensis AWRI1499
Despite its industrial importance, the yeast species Dekkera (Brettanomyces) bruxellensis has remained poorly understood at the genetic level. In this study we describe whole genome sequencing and analysis for a prevalent wine spoilage strain, AWRI1499. The 12.7 Mb assembly, consisting of 324 contigs in 99 scaffolds (super-contigs) at 26-fold coverage, exhibits a relatively high density of single nucleotide polymorphisms (SNPs). Haplotype sampling for 1.2% of open reading frames suggested that the D. bruxellensis AWRI1499 genome is comprised of a moderately heterozygous diploid genome, in combination with a divergent haploid genome. Gene content analysis revealed enrichment in membrane proteins, particularly transporters, along with oxidoreductase enzymes. Availability of this assembly and annotation provides a resource for further investigation of genomic organization in this species, and functional characterization of genes that may confer important phenotypic traits
The Polarimetric and Helioseismic Imager on Solar Orbiter
Aims. This paper describes the Polarimetric and Helioseismic Imager on the Solar Orbiter mission (SO/PHI), the first magnetograph and helioseismology instrument to observe the Sun from outside the Sun-Earth line. It is the key instrument meant to address the top-level science question: How does the solar dynamo work and drive connections between the Sun and the heliosphere? SO/PHI will also play an important role in answering the other top-level science questions of Solar Orbiter, while hosting the potential of a rich return in further science.
Methods. SO/PHI measures the Zeeman effect and the Doppler shift in the Fe
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The Polarimetric and Helioseismic Imager on Solar Orbiter
This paper describes the Polarimetric and Helioseismic Imager on the Solar
Orbiter mission (SO/PHI), the first magnetograph and helioseismology instrument
to observe the Sun from outside the Sun-Earth line. It is the key instrument
meant to address the top-level science question: How does the solar dynamo work
and drive connections between the Sun and the heliosphere? SO/PHI will also
play an important role in answering the other top-level science questions of
Solar Orbiter, as well as hosting the potential of a rich return in further
science.
SO/PHI measures the Zeeman effect and the Doppler shift in the FeI 617.3nm
spectral line. To this end, the instrument carries out narrow-band imaging
spectro-polarimetry using a tunable LiNbO_3 Fabry-Perot etalon, while the
polarisation modulation is done with liquid crystal variable retarders (LCVRs).
The line and the nearby continuum are sampled at six wavelength points and the
data are recorded by a 2kx2k CMOS detector. To save valuable telemetry, the raw
data are reduced on board, including being inverted under the assumption of a
Milne-Eddington atmosphere, although simpler reduction methods are also
available on board. SO/PHI is composed of two telescopes; one, the Full Disc
Telescope (FDT), covers the full solar disc at all phases of the orbit, while
the other, the High Resolution Telescope (HRT), can resolve structures as small
as 200km on the Sun at closest perihelion. The high heat load generated through
proximity to the Sun is greatly reduced by the multilayer-coated entrance
windows to the two telescopes that allow less than 4% of the total sunlight to
enter the instrument, most of it in a narrow wavelength band around the chosen
spectral line