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Genomic Analysis of an Excellent Wine-Making Strain Oenococcus oeni SD-2a Cover

Genomic Analysis of an Excellent Wine-Making Strain Oenococcus oeni SD-2a

Open Access
|Jun 2022

Abstract

Oenococcus oeni is an important microorganism in wine-making-related engineering, and it improves wine quality and stability through malolactic fermentation. Although the genomes of more than 200 O. oeni strains have been sequenced, only a few include completed genome maps. Here, the genome sequence of O. oeni SD-2a, isolated from Shandong, China, has been determined. It is a fully assembled genome sequence of this strain. The complete genome is 1,989,703 bp with a G+C content of 37.8% without a plasmid. The genome includes almost all the essential genes involved in central metabolic pathways and the stress genes reported in other O. oeni strains. Some natural competence-related genes, like comEA, comEC, comFA, comG operon, and comFC, suggest that O. oeni SD-2a may have natural transformation potential. A comparative genomics analysis revealed 730 gene clusters in O. oeni SD-2a homologous to those in four other lactic acid bacteria species (O. oeni PSU-1, O. oeni CRBO-11381, Lactiplantibacillus plantarum UNQLp11, and Pediococcus pentosaceus KCCM40703). A collinearity analysis showed poor collinearity between O. oeni SD-2a and

O. oeni PSU-1, indicating great differences in their evolutionary histories. The results provide general knowledge of O. oeni SD-2a and lay the foundation for specific gene function analyses.

DOI: https://doi.org/10.33073/pjm-2022-026 | Journal eISSN: 2544-4646 | Journal ISSN: 1733-1331
Language: English
Page range: 279 - 292
Submitted on: Mar 7, 2022
Accepted on: May 14, 2022
Published on: Jun 19, 2022
Published by: Polish Society of Microbiologists
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2022 Longxiang Liu, Shuai Peng, Weiyu Song, Hongyu Zhao, Hua Li, Hua Wang, published by Polish Society of Microbiologists
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.