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Genetic Analysis of East Asian Grape Cultivars Suggests Hybridization with Wild Vitis

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  • Nami Goto-Yamamoto
  • Jason Sawler
  • Sean Myles

Abstract

Koshu is a grape cultivar native to Japan and is one of the country’s most important cultivars for wine making. Koshu and other oriental grape cultivars are widely believed to belong to the European domesticated grape species Vitis vinifera. To verify the domesticated origin of Koshu and four other cultivars widely grown in China and Japan, we genotyped 48 ancestry informative single nucleotide polymorphisms (SNPs) and estimated wild and domesticated ancestry proportions. Our principal components analysis (PCA) based ancestry estimation revealed that Koshu is 70% V. vinifera, and that the remaining 30% of its ancestry is most likely derived from wild East Asian Vitis species. Partial sequencing of chloroplast DNA suggests that Koshu’s maternal line is derived from the Chinese wild species V. davidii or a closely related species. Our results suggest that many traditional East Asian grape cultivars such as Koshu were generated from hybridization events with wild grape species.

Suggested Citation

  • Nami Goto-Yamamoto & Jason Sawler & Sean Myles, 2015. "Genetic Analysis of East Asian Grape Cultivars Suggests Hybridization with Wild Vitis," PLOS ONE, Public Library of Science, vol. 10(10), pages 1-9, October.
    • Handle: RePEc:plo:pone00:0140841
    DOI: 10.1371/journal.pone.0140841
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    References listed on IDEAS

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    1. Allison J Miller & Naim Matasci & Heidi Schwaninger & Mallikarjuna K Aradhya & Bernard Prins & Gan-Yuan Zhong & Charles Simon & Edward S Buckler & Sean Myles, 2013. "Vitis Phylogenomics: Hybridization Intensities from a SNP Array Outperform Genotype Calls," PLOS ONE, Public Library of Science, vol. 8(11), pages 1-11, November.
    2. Sean Myles & Jer-Ming Chia & Bonnie Hurwitz & Charles Simon & Gan Yuan Zhong & Edward Buckler & Doreen Ware, 2010. "Rapid Genomic Characterization of the Genus Vitis," PLOS ONE, Public Library of Science, vol. 5(1), pages 1-9, January.
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