Terroir 2020 banner
IVES 9 IVES Conference Series 9 Genetic diversity of Oenococcus oeni strains isolated from Yinchuan wine region in the East of Helan Mountain, China

Genetic diversity of Oenococcus oeni strains isolated from Yinchuan wine region in the East of Helan Mountain, China

Abstract

Aim: This study aimed to isolate Oenococcus oeni in red wines from Yinchuan wine region in the East of Helan Mountain, China, and analysis their genetic diversity.

Methods and Results: Oenococcus oeni strains were isolated from Cabernet Sauvignon and Cabernet Gernischt wines of four representative wineries in 2016. Total 207 O. oeni strains were isolated and identified by species-specific PCR. Following that, 206 amplified fragment length polymorphism (AFLP) genotypes were detected, with the similarity coefficients ranging between 63% – 97%. Based on the UPGMA, two major phylogroups were deciphered at 81% similarity level. Interestingly, the strains in different phylogroups were isolated from wines of different cultivars. In addition, strains from the same winery formed a unique cluster.

Conclusions: 

Our results indicate there is an obvious genetic relationship of O. oeni with grape cultivars and their origins. Our results also support the fact that O. oeni is an important factor related to the wine terroir. 

Significance and Impact of the Study: The Chinese wine industry has steadily grown in recent years. However, limited development and application of indigenous O. oeni strains would lead to homogeneity in wine quality. The outcome of this study would lay down the theoretical foundation for the development of indigenous O. oeni strains with regional characteristics.

DOI:

Publication date: March 17, 2021

Issue: Terroir 2020

Type: Video

Authors

Kan Shi1,3 ,4, Huawei Gu2, Dongliang Yu5, Shuwen Liu1,3,4*

1College of Enology, Northwest A&F University, Yangling, Shaanxi 712100, China
2College of Life Sciences, Northwest A&F University, Yangling, Shaanxi 712100, China
3Shaanxi Engineering Research Center for Viti-Viniculture, Yangling, Shaanxi 712100, China
4Heyang Experimental and Demonstrational Stations for Grape, Weinan, Shaanxi 715300, China
5Qinhuangdao Chateau Kings Global Co., Ltd, Changli, Hebei 066600, China

Contact the author

Keywords

Wine, Oenococcus oeni, genetic diversity, AFLP

Tags

IVES Conference Series | Terroir 2020

Citation

Related articles…

Effect of certain climatic variables on the phenolic and aromatic composition of two red grape varieties (Merlot and Cabernet-Sauvignon) grown in the Mancha region (Spain)

Between 2002 and 2004 we studied the behaviour of two red grape varieties – Merlot and Cabernet Sauvignon – within the scope of an experimental protocol encompassing 14 plots, 7 of which had not been cultivated, situated in geographically distant locations representing different terroirs of Castilla-La Mancha.

Predicting consumers’ organic wine consumption behaviour

Organic wine production and consumption is one of the sustainable practices contributing to a number of sustainable development goals (SDGs).

Agronomic behaviour of a native grapevine cultivar from the North of Spain (Vitis vinifera L.) in a mountain viticulture area and in a coastal zone

A work involving the finding, the description and the recovery of old grapevine varieties from the north and north east of Spain was begun in the CSIC in the year 1987.

Grape texture characteristics are linked to one major qtl

Berry texture and berry skin mechanical properties have high agronomic importance, related to quality and marketing requirements of wine, table and raisin grapes.

Withering of the ‘Moscato giallo’ grapes under covered space

For the purpose of producing predicate wines in northern part of Croatia, grapes are traditionally left on the vine unpicked. However, grapes on the vine are exposed to unfavorable environmental conditions that affect rapid rotting and attacked by birds. To eliminate the mentioned risks, the grapes can be picked and placed in a protected space (loft, greenhouse, etc.) suitable for drying. This study presents the results of research on withering grapes of the ‘Moscato giallo’ variety in two tretment: sun drying (under covered terrace) and drying in the shade (loft). The following quality parameters were monitored: mass of grapes, sugar concentration, content of total acids, pH, content of organic acids.