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Sci Rep. 2017 Aug 23;7(1):9239. doi: 10.1038/s41598-017-08946-3.

Association between taste receptor (TAS) genes and the perception of wine characteristics.

Author information

1
Department of Biology, Pisa University, Pisa, Italy.
2
Department of Molecular Biology of Cancer, Institute of Experimental Medicine, Academy of Science of Czech Republic, Prague, Czech Republic.
3
Institute of Biology and Medical Genetics, 1st Medical Faculty, Charles University, Prague, Czech Republic.
4
Biomedical Centre, Medical School Pilsen, Charles University in Prague, Pilsen, Czech Republic.
5
CREA - Research Centre for Viticulture, Conegliano, Italy.
6
Sistemi Territoriali S.r.l., 56021, Cascina Loc, San Prospero, Italy.
7
1st Medical Faculty, Charles University in Prague, 12000, Prague, Czech Republic.
8
Genomic Epidemiology Group, German Cancer Research Center, Heidelberg, Germany.
9
Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy.
10
Department of Sustainable Crop Production, Pomology and Viticulture Section, Università Cattolica del Sacro Cuore, Piacenza, Italy.
11
Department of Biology, Pisa University, Pisa, Italy. roberto.barale@unipi.it.

Abstract

Several studies have suggested a possible relationship between polymorphic variants of the taste receptors genes and the acceptance, liking and intake of food and beverages. In the last decade investigators have attempted to link the individual ability to taste 6-n-propylthiouracil (PROP) and the sensations, such as astringency and bitterness, elicited by wine or its components, but with contradictory results. We have used the genotype instead of the phenotype (responsiveness to PROP or other tastants), to test the possible relation between genetic variability and the perception of wine characteristic in 528 subjects from Italy and the Czech Republic. We observed several interesting associations, among which the association between several TAS2R38 gene single nucleotide polymorphisms (P = 0.002) and the TAS2R16-rs6466849 polymorphism with wine sourness P = 0.0003). These associations were consistent in both populations, even though the country of origin was an important factor in the two models, thus indicating therefore that genetics alongside cultural factors also play a significant role in the individual liking of wine.

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