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Saccharomycodes ludwigii

ABSTRACT: Saccharomycodes ludwigii: mutation accumulation study

PROVIDER: PRJNA578491 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR10325937_1.fastq.gz	Fastqsanger.gz
	SRR10325937_2.fastq.gz	Fastqsanger.gz
	SRR10325938_1.fastq.gz	Fastqsanger.gz
	SRR10325938_2.fastq.gz	Fastqsanger.gz
	SRR10325939_1.fastq.gz	Fastqsanger.gz

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Saccharomycodes ludwigii

Project description:Genomics and meiotic segregation study of Saccharomycodes ludwigii

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Saccharomycodes ludwigii

Project description:Saccharomycodes ludwigii: comparative genomics of wild-type isolates

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Saccharomycodes ludwigii strain:UTAD17

Project description:Genome sequencing, annotation and exploration of the SO2-tolerant non-conventional yeast Saccharomycodes ludwigii

| PRJNA542099 | ENA

Genome sequence of Saccharomycodes ludwigii UTAD17

Project description:Sequencing and genomics of the spoilage yeast Saccharomycodes ludwigii UTAD17

| PRJEB27462 | ENA

The TyrR regulon of Enterobacter ludwigii UW5

Project description:The TyrR transcription factor controls the expression of genes for the uptake and biosynthesis of aromatic amino acids in Escherichia coli. In the plant-associated and clinically significant proteobacterium Enterobacter ludwigii UW5, the TyrR orthologue was previously shown to regulate genes that encode enzymes for synthesis of the plant hormone indole-3-acetic acid and gluconeogenesis, indicating a broader function for the transcription factor. This study aimed to delineate the TyrR regulon of E. ludwigii by comparing the transcriptomes of the wild-type and a tyrR deletion strain. Our data show that TyrR regulates the expression of over 150 genes positively or negatively. The findings suggest that the E. ludwigii TyrR regulon has diverged from that of E. coli to include genes for survival in the diverse environments that this bacterium inhabits, and illustrate the expansion and plasticity of transcription factor regulons.

2020-10-16 | GSE122440 | GEO

Genome Sequence of the Wine Yeast Saccharomycodes ludwigii UTAD17.

Project description:This work describes, for the first time, the genome sequence of a Saccharomycodes ludwigii strain. Although usually seen as a wine spoilage yeast, S. ludwigii has been of interest for the production of fermented beverages because it harbors several interesting properties, including the production of beneficial aroma compounds.

| S-EPMC6256542 | biostudies-literature

Sex without crossing over in the yeast Saccharomycodes ludwigii.

Project description:BackgroundIntermixing of genomes through meiotic reassortment and recombination of homologous chromosomes is a unifying theme of sexual reproduction in eukaryotic organisms and is considered crucial for their adaptive evolution. Previous studies of the budding yeast species Saccharomycodes ludwigii suggested that meiotic crossing over might be absent from its sexual life cycle, which is predominated by fertilization within the meiotic tetrad.ResultsWe demonstrate that recombination is extremely suppressed during meiosis in Sd. ludwigii. DNA double-strand break formation by the conserved transesterase Spo11, processing and repair involving interhomolog interactions are required for normal meiosis but do not lead to crossing over. Although the species has retained an intact meiotic gene repertoire, genetic and population analyses suggest the exceptionally rare occurrence of meiotic crossovers in its genome. A strong AT bias of spontaneous mutations and the absence of recombination are likely responsible for its unusually low genomic GC level.ConclusionsSd. ludwigii has followed a unique evolutionary trajectory that possibly derives fitness benefits from the combination of frequent mating between products of the same meiotic event with the extreme suppression of meiotic recombination. This life style ensures preservation of heterozygosity throughout its genome and may enable the species to adapt to its environment and survive with only minimal levels of rare meiotic recombination. We propose Sd. ludwigii as an excellent natural forum for the study of genome evolution and recombination rates.

| S-EPMC8567612 | biostudies-literature

Saccharomycodes ludwigii

Project description:Budding yeast that produces secondary fermentation products

| PRJNA28069 | ENA

Dicrurus ludwigii

Project description:Dicrurus ludwigii

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Characterizing the Potential of the Non-Conventional Yeast Saccharomycodes ludwigii UTAD17 in Winemaking.

Project description:Non-Saccharomyces yeasts have received increased attention by researchers and winemakers, due to their particular contributions to the characteristics of wine. In this group, Saccharomycodes ludwigii is one of the less studied species. In the present study, a native S. ludwigii strain, UTAD17 isolated from the Douro wine region was characterized for relevant oenological traits. The genome of UTAD17 was recently sequenced. Its potential use in winemaking was further evaluated by conducting grape-juice fermentations, either in single or in mixed-cultures, with Saccharomyces cerevisiae, following two inoculation strategies (simultaneous and sequential). In a pure culture, S. ludwigii UTAD17 was able to ferment all sugars in a reasonable time without impairing the wine quality, producing low levels of acetic acid and ethyl acetate. The overall effects of S. ludwigii UTAD17 in a mixed-culture fermentation were highly dependent on the inoculation strategy which dictated the dominance of each yeast strain. Wines whose fermentation was governed by S. ludwigii UTAD17 presented low levels of secondary aroma compounds and were chemically distinct from those fermented by S. cerevisiae. Based on these results, a future use of this non-Saccharomyces yeast either in monoculture fermentations or as a co-starter culture with S. cerevisiae for the production of wines with greater expression of the grape varietal character and with flavor diversity could be foreseen.

| S-EPMC6920815 | biostudies-literature

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