PYCC 10394

General Information

Taxonomy

1 - Taxon name

Zygosaccharomyces progenitor

2 - Classification

Ascomycota

3 - Strain (species name) changes

4 - Status of the strain

5 - Basis for identification

Molecular (whole genome sequence)

6 - Identified by

M. Silva

Other Collections

7 - Original strain number

4.1SY1

8 - Accession numbers in other collections

Biosafety and restrictions

9 - Biological Safety Level

BSL-1

Strain details

11 - PYCC strain status

Open

12 - Mediterranean strain

13 - Substrate of isolation

Honeypot of commercial Bombus impatiens

14 - Category of substrate

Food & beverages

15 - Locality

University of Davis, California

16 - Country of origin

USA

18 - Sample Collected by

19 - Isolated by and date of isolation

20 - Isolation details

YMA with 0.1mgml−1 chloramphenicol

21 - Deposited by

Ana Pontes, Jul. 2025

22 - History

A. Pontes > PYCC

23 - Preservation

Glass beads; 20% Glycerol; -150C

24 - Price per culture

90€

25 - Remarks

Growth conditions

26 - Medium for growth

BRZ

Molecular data

DNA Sequence

Region

26S

Sequence Title

OZ286152

Gene Bank Url

https://www.ncbi.nlm.nih.gov/nuccore/OZ286152

Whole genome

ERS25188134

Bibliography

Title

Zygosaccharomyces progenitor sp. nov., a new yeast species associated with bees of the genera Apis and Bombus

Author

Ana Pontes, Margarida R. Silva, Danielle Rutkowski, Claúdia Carvalho, João Coito, Nuno Capela, Marizeth Groenewald, Patrícia H. Brito, Carla Gonçalves, Rachel L. Vannette, José Paulo Sampaio

Abstract

A novel ascomycetous yeast species of the genus Zygosaccharomyces is proposed, based on isolates obtained in Japan, Portugal and the USA, and on a combination of conventional DNA barcode sequence analyses and whole-genome phylogenies. The new species is described as Zygosaccharomyces progenitor sp. nov. (PYCC 7198 T ) and was found in association with bees ( Apis mellifera and Bombus spp.) and their honey, besides being found in plants and soil. The novel species belongs to a Zygosaccharomyces subclade that also harbours Zygosaccharomyces rouxii . Although the two species can be differentiated at the sequence level, they cannot be distinguished at the phenotypic level. As is typical of the genus, Z. progenitor sp. nov. produces spherical ascospores after cell conjugation.

Publication Date

12 Nov 2025

Link to Publication

https://doi.org/10.1099/ijsem.0.006957

Publication Pdf