Geographic delineations of yeast communities and populations associated with vines and wines in New Zealand

Gayevskiy, Velimir and Goddard, Matthew R. (2012) Geographic delineations of yeast communities and populations associated with vines and wines in New Zealand. ISME Journal, 6 (7). pp. 1281-1290. ISSN 1751-7362

Full content URL: http://www.nature.com/ismej/journal/v6/n7/full/ism...

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Geographic delineations of yeast communities and populations associated with vines and wines in New Zealand

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Abstract

Yeasts are a diverse seemingly ubiquitous group of eukaryotic microbes, and many are naturally associated with fruits. Humans have harnessed yeasts since the dawn of civilisation to make wine, and thus it is surprising that we know little of the distribution of yeast communities naturally associated with fruits. Previous reports of yeast community diversity have been descriptive only. Here we present, we believe, the first robust test for the geographic delineation of yeast communities. Humans have relatively recently employed Saccharomyces cerevisiae as a model research organism, and have long harnessed its ancient adaption to ferment even in the presence of oxygen. However, as far as we are aware, there has not been a rigorous test for the presence of regional differences in natural S. cerevisiae populations before. We combined these community- and population-level questions and surveyed replicate vineyards and corresponding spontaneous ferments from different regions on New Zealand's (NZ's) North Island and analysed the resulting data with community ecology and population genetic tests. We show that there are distinct regional delineations of yeast communities, but the picture for S. cerevisiae is more complex: there is evidence for region-specific sub-populations but there are also reasonable levels of gene flow among these regions in NZ. We believe this is the first demonstration of regional delineations of yeast populations and communities worldwide. © 2012 International Society for Microbial Ecology All rights reserved.

Keywords:biogeography, biotechnology, civilization, community ecology, fermentation, food industry, geographical distribution, geographical variation, microbial community, microbial ecology, oxygen, population structure, subpopulation, vine, yeast, article, classification, genetics, microbiology, New Zealand, phylogeny, Saccharomyces cerevisiae, Vitis, wine, yeast, Fermentation, Yeasts, New Zealand, Eukaryota
Subjects:C Biological Sciences > C180 Ecology
D Veterinary Sciences, Agriculture and related subjects > D711 Agricultural Microbiology
Divisions:College of Science > School of Life Sciences
ID Code:17152
Deposited On:15 May 2015 10:22

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