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.

Download the PDF

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…

Estimation of stomatal conductance and chlorophyll fluorescence in Croatian grapevine germplasm under water deficit    

Water deficit profoundly impacts the quality of grapes and results in considerable reductions in crop yield. First symptoms manifest with reduced stomatal conductance and transpiration, accompanied by the wilting of apical leaves and tendrils. So far, there is no available data on the water stress response in Croatian grapevine germplasm. Therefore, objective of this study was to determine influence of genotype and treatment on stomatal conductance (gsw), transpiration (E), electron transport rate (ETR), and quantum efficiency in light (PhiPS2).

Read More

Vers la maîtrise de l’effeuillage pré-floral de la vigne

Dans le cadre de TerclimPro 2025, Thibaut Verdenal a présenté l’article IVES Technical Reviews. Retrouvez la présentation ci-dessous ainsi que l’article associé : https://ives-technicalreviews.eu/article/view/8405

Read More

Use of fumaric acid to control pH and inhibit malolactic fermentation in wines

In this audio recording of the IVES science meeting 2022, Antonio Morata (Universidad Politécnica de Madrid, Madrid, Spain) speaks about the use of fumaric acid to control pH and inhibit malolactic fermentation in wines.

Read More

Is complex nutrition more advantageous than mineral nitrogen for the fermentative capacities of S. cerevisiae?

During alcoholic fermentation, nitrogen is an essential nutrient for yeast as it plays a key role in sugar transport and biosynthesis of wine aromatic compounds (thiols, esters, higher alcohols). The main issue of a lack in yeast assimilable nitrogen (yan) in winemaking is sluggish or stuck fermentations promoting the growth of alteration species which may lead to economic losses. However, correcting this nitrogen deficiency is sometimes not enough to restore proper fermentation performance. This suggests the existence of other nutritional shortages.

Read More

A population genetic study of Vitis vinifera L. subsp. sylvestris Gmelin based on 3.000 individuals from 20 countries

Until the 19th century, the wild form of cultivated grapevines (vitis vinifera l. subsp. sylvestris gmelin, v. sylvestris) was ubiquitous in many european and west asian regions. However, many factors like deforestation, the intensification of agriculture, or the introduction of several pests and pathogens decimated its presence in these growing sites, and natural populations are now mostly restricted to river-bank forests and creeks with specific soil and climate conditions. in fact, v. sylvestris is now considered an endangered subspecies that is protected by law in many european countries to prevent its loss.

Read More