Category Archives: Genetics and the Grape

International collaboration advances research into grape disease resistance

The effectiveness of a collaboration between two research teams can be greater than the sum of its parts. This was part of the incentive for German scientist Daniel Zendler, a leading expert on the Ren3 and Ren9 genes for powdery … Continue reading

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Staff Spotlight on Cheng Zou

VitisGen2 team member Cheng Zou, postdoctoral researcher in Qi Sun’s lab at Cornell University, talks about finding a core-genome markers for comparing genotypic data across all grape species, and the applications for marker assisted selection and quantitative trait mapping! Don’t … Continue reading

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New RIPE article on genetic linkage mapping

Our new “Research In Plain English” article is now available: “A new locus associated with downy mildew resistance is found by creating a more accurate genetic linkage map” Our VitisGen2 teams are doing a lot of great work learning about … Continue reading

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Qi Sun, Anne Fennell and Dario Cantu participate in INTEGRAPE meeting in Greece.

The Integrape meeting is focused on developing FAIR (Findable, Accesible, Interoperable and Reusable) standards to harmonize databases on Vitis genomics, genetics, and breeding. Report written by Qi Sun and Anne Fennell Integrape (http://www.integrape.eu) is a cooperation network sponsored by European Cooperation … Continue reading

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“American Vineyard” article on table grape breeding

Tim Martinson, Craig Ledbetter and Rachel Naegele wrote an article for “American Vineyard” magazine about how VitisGen2 is using marker assisted selection to breed new table grape varieties with deeper coloration. You can read the full article!

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New Technology for Next-gen DNA Sequencing Validated by the VitisGen2 Project

A new technology called rhAmpSeq™ is allowing grape geneticists and breeders to rapidly find and validate 2000 markers in diverse grape varieties and species.  These ‘core genome markers’ provide a new set of mileposts that were used during a pilot … Continue reading

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Why the World’s Most Popular Wine Grapes Are Vulnerable to a Pandemic

An article by Jen Pinkowski in Mental Floss discusses the lack of genetic diversity in the most commonly cultivated V. vinifera grapes. “The vast majority of wine produced across the world derives from a single grapevine species: Vitis vinifera. The … Continue reading

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Molecular Changes in Vitis vinifera Associated with the Onset of Pierce’s Disease

A new publication out of UC Davis, co-authored by VitisGen2 genetics team member, Dario Cantu, investigated molecular changes in vines infected by Pierce’s disease.  The bacterial disease is of major concern because it is vectored by a ubiquitous insect, the … Continue reading

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Grape Breeders No Longer Flying Blind

Wines & Vines, March 2018 issue By Tim Martinson “For grape breeders and geneticists, the previous trickle of scarce genetic knowledge has turned into a flood of DNA sequence information. For the first time, there is enough sequence information to … Continue reading

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Quantitative Trait Loci Linked to Downy Mildew Resistance

VitisGen2 researchers Konstantin Divilov, Paola Barba, Lance Cadle-Davidson, and Bruce Reisch found multiple quantitative trait loci associated with downy mildew sporulation and hypersensitive response in hybrid grape families using a single phenotype model. Read full article here    

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