The yeast Komagataella: A genetic genus in accordance with interspecies hybridization

Наумов, Г. И.

doi:10.1134/s0026261715040141

Cited by 7 publications

(3 citation statements)

References 34 publications

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“…Naumov et al (2016) found a good correspondence between hybrid fertility and phylogenetic relatedness in species of the homothallic genus Komagataella. Interestingly, the genus was used by Naumov (2015) as an example of a "genetic genus", where prezygotic isolation is used to delineate genera, a concept that he extended also to Saccharomyces, Kluyveromyces, Arthroascus (a.k.a. Saccharomycopsis), Galactomyces, Metschnikowia, Phaffomyces, Williopsis, and Zygowilliopsis (the last two are currently assigned to Cyberlindnera and Barnettozyma, respectively).…”

Section: Lessons From Other Saccharomycotina Ascomycotamentioning

confidence: 99%

The evolving species concepts used for yeasts: from phenotypes and genomes to speciation networks

et al. 2021

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Here we review how evolving species concepts have been applied to understand yeast diversity. Initially, a phenotypic species concept was utilized taking into consideration morphological aspects of colonies and cells, and growth profiles. Later the biological species concept was added, which applied data from mating experiments. Biophysical measurements of DNA similarity between isolates were an early measure that became more broadly applied with the advent of sequencing technology, leading to a sequence-based species concept using comparisons of parts of the ribosomal DNA. At present phylogenetic species concepts that employ sequence data of rDNA and other genes are universally applied in fungal taxonomy, including yeasts, because various studies revealed a relatively good correlation between the biological species concept and sequence divergence. The application of genome information is becoming increasingly common, and we strongly recommend the use of complete, rather than draft genomes to improve our understanding of species and their genome and genetic dynamics. Complete genomes allow in-depth comparisons on the evolvability of genomes and, consequently, of the species to which they belong. Hybridization seems a relatively common phenomenon and has been observed in all major fungal lineages that contain yeasts. Note that hybrids may greatly differ in their post-hybridization development. Future in-depth studies, initially using some model species or complexes may shift the traditional species concept as isolated clusters of genetically compatible isolates to a cohesive speciation network in which such clusters are interconnected by genetic processes, such as hybridization.

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Section: Lessons From Other Saccharomycotina Ascomycotamentioning

confidence: 99%

The evolving species concepts used for yeasts: from phenotypes and genomes to speciation networks

et al. 2021

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“…populi (Figure S3) (Dlauchy et al, 2003;Kurtzman, 2005Kurtzman, , 2012Naumov et al, 2018). As with Saccharomyces, Komagataella species readily hybridize in the laboratory, but hybrids are post-zygotically reproductively isolated and generate mostly unviable ascospores (0%-7% viable ascospores) (Naumov, 2015;Naumov et al, 2016); they may also be prezygotically isolated by substrate or geography. We are not aware of naturally occurring Komagataella hybrids in temperate forests, although the shared mating system among Komagataella species makes hybrids likely.…”

Section: The Genus Komagataellamentioning

confidence: 99%

Yeasts from temperate forests

Mozzachiodi

Bai

Baldrián

et al. 2022

Yeast

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Yeasts are ubiquitous in temperate forests. While this broad habitat is well‐defined, the yeasts inhabiting it and their life cycles, niches, and contributions to ecosystem functioning are less understood. Yeasts are present on nearly all sampled substrates in temperate forests worldwide. They associate with soils, macroorganisms, and other habitats and no doubt contribute to broader ecosystem‐wide processes. Researchers have gathered information leading to hypotheses about yeasts' niches and their life cycles based on physiological observations in the laboratory as well as genomic analyses, but the challenge remains to test these hypotheses in the forests themselves. Here, we summarize the habitat and global patterns of yeast diversity, give some information on a handful of well‐studied temperate forest yeast genera, discuss the various strategies to isolate forest yeasts, and explain temperate forest yeasts' contributions to biotechnology. We close with a summary of the many future directions and outstanding questions facing researchers in temperate forest yeast ecology. Yeasts present an exciting opportunity to better understand the hidden world of microbial ecology in this threatened and global habitat.

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“…The analysis of sequence-based evolutionary relationship among the closely related species of 18S rDNA genes of yeasts and 16S rDNA genes of bacteria can be helpful to ascertain their identity. [20] Recently, the antioxidant activity of Balarishta ,[82122] Saraswatarishta ,[12] Ashwagandharishta [23] and Kumaryasava [24] were documented. Antioxidants have numerous pharmaceutical and therapeutic roles to play.…”

Section: Introductionmentioning

confidence: 99%

Influence of intrinsic microbes on phytochemical changes and antioxidant activity of the Ayurvedic fermented medicines: Balarishta and Chandanasava

Vinothkanna

Sathiya

2018

AYU

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Background: Balarishta and Chandanasava are polyherbal-fermented medicines of Ayurveda. Objective: Investigation of native microbes, understanding phytochemical changes and antioxidant activities in these medicines. Methods: Microbial populations were enumerated using selective media and standard plating methods. Yeast and bacteria were identified using classical and molecular methods. Qualitative phytochemical and gas chromatography-mass spectrometry (GC-MS) analyses were carried out. In vitro antioxidant assays were performed with different assay systems. Results: Balarishta and Chandanasava possess two yeasts ( Saccharomyces cerevisiae and Schizosaccharomyces pombe ) and six bacteria that are species of Bacillus , Paenibacillus , and Brevibacillus . These microbes identified biochemically were authenticated with 16S and 18S rDNA sequence analysis and NCBI accession numbers. GC-MS analysis indicated that several compounds disappear as a result of fermentation while many are retained. The presence of new phytochemical compounds in the final stages of fermentation could be ascribed from the parent molecules that either disappeared or retained during fermentation. It suggests the biotransformation of phytochemicals by the mediation of intrinsic microbes. These medicines possess antioxidant activities by the presence of phytochemicals such as phenolics, flavonoids, tannins and phytosterols, wherein bacteria also contribute. Conclusion: The role of native microbial consortium in fermentation, biotransformation and antioxidant activity of these Arishta and Asava is demonstrated.

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The yeast Komagataella: A genetic genus in accordance with interspecies hybridization

Cited by 7 publications

References 34 publications

The evolving species concepts used for yeasts: from phenotypes and genomes to speciation networks

The evolving species concepts used for yeasts: from phenotypes and genomes to speciation networks

Yeasts from temperate forests

Influence of intrinsic microbes on phytochemical changes and antioxidant activity of the Ayurvedic fermented medicines: Balarishta and Chandanasava

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