PYCC 5189
1 - Taxon name
Torulaspora obscura
2 - Classification
Ascomycota
3 - Strain (species name) changes
Zygosaccharomyces microellipsoides; Torulaspora microellipsoides
4 - Status of the strain
NA
5 - Basis for identification
Molecular (whole genome sequence)
6 - Identified by
Margarida Silva
7 - Original strain number
NA
8 - Accession numbers in other collections
NA
9 - Biological Safety Level
BSL-1
10 - Access and Benefit Sharing (CBD, Nagoya protocol)
No known ABS restrictions
11 - PYCC strain status
Open
12 - Mediterranean strain
No
13 - Substrate of isolation
orange soda
14 - Category of substrate
Food & beverages
15 - Locality
Unknown
16 - Country of origin
UK
18 - Sample Collected by
NA
19 - Isolated by and date of isolation
Cristina & M. Carvalheiro
20 - Isolation details
NA
21 - Deposited by
Cristina & M. Carvalheiro
22 - History
M. Carvalheiro > PYCC
23 - Preservation
Glass beads; 20% Glycerol; -150ºC
24 - Price per culture
90€
25 - Remarks
NA
26 - Medium for growth
YMA
Whole genome
GCA_964263665
F1 D-Glucose
+
F2 D-Galactose
+
F3 Maltose
-
F5 Sucrose
+
F6 a,a-Trehalose
-
F7 Melibiose
+
F8 Lactose
-
F9 Cellobiose
-
F10 Melezitose
-
F11 Raffinose
+
F12 Inulin
-
T1 Growth at 25ºC
+
T1 Growth at 30ºC
+
T3 Growth at 35ºC
-
T4 Growth at 37ºC
-
T5 Growth at 40ºC
-
O4 50% D-Glucose
-
M1 Starch formation
-
M3 Urea hydrolysis
-
M4 Diazonium Blue B reaction
-
Title
A taxogenomic view of the genus Torulaspora: an expansion from ten to twenty-two species

Author

M.R. Silva, F. Paraíso, J. Al-Oboudi, M. Abegg, A. Aires, K.O. Barros, P.H. Brito, M. Jarzyna, K. Sylvester, Q.K. Langdon, D.A. Opulente, F. Carriconde, J.W. Fell, T.A. Hofmann, M.-A. Lachance, J.-L. Legras, D. Libkind, A. Pontes, P. Gonçalves, C.A. Rosa, M. Groenewald, C.T. Hittinger, J.P. Sampaio

Abstract

The yeast genus Torulaspora (subphylum Saccharomycotina, family Saccharomycetaceae) is mostly known from its type species, T. delbrueckii, a frequent colonizer of wine and sourdough bread fermentations. The genus currently contains 10 species that are typically found in various natural terrestrial environments in temperate and tropical climates. Here we employ taxogenomic analyses to investigate a large collection of Torulaspora strains obtained in multiple surveys we carried out in Asia, Australasia, North America, South America, and Europe, and to which we added several strains maintained in culture collections. Our analyses detected twelve novel species that are formally described here, thereby more than doubling the species diversity of Torulaspora. We also sketch a genotype-phenotype map for the genus and show how the complex relationship between key genes and the physiological traits they control both between and within species. This remarkable increase in the number of species in the genus Torulaspora highlights how limited the current inventory of fungal taxa is. It also shows how integrated taxogenomic approaches can foster the assessment of species circumscriptions in fungi.

Publication Date

Link to Publication

https://doi.org/10.3114/persoonia.2025.54.08