page_title: Dureza
section_title: Relationship to Syrah and other varieties
hierarchical_section_title: Dureza / Relationship to Syrah and other varieties
caption_attribution_description: Map of Rhône-Alpes, by Rinaldum. The grape Dureza is believed to have originated in the Ardèche (#1) in the southwest and moved east/northeast into Drôme (#2) and Isère (#3). Somewhere in this area, most likely in Isère, the vine crossed with Mondeuse Blanche, a variety native to the Savoie region (#4), to produce Syrah.
context_page_description: Dureza is a dark-skinned French wine grape variety from the Ardèche department of south central France in the Rhône-Alpes region. The grape is most widely known for being the father vine of Syrah—a discovery that confirmed that the Syrah vine was native to France and not introduced to the country from Persia, Sicily, Egypt or elsewhere, as had been speculated.
  Dureza was historically used for production of red wine, but is hardly grown any more and is not part of the list of the allowed grape varieties of any French Appellation d'origine contrôlée wine, though it can be produced under some vin de pays. There were only 11 hectares planted to Dureza in the late 1970s: by 1988 only one hectare remained. However, since the variety's relationship to Syrah was revealed, interest in Dureza has been increasing: Pascal Jamet has introduced plantings of the grape to the Saint-Joseph AOC in the northern Rhône Valley, for wine to be made under the appellation of Collines Rhodaniennes vin de pays.
context_section_description: In 1998, DNA typing conducted at both the University of California-Davis and at the Institut National de la Recherche Agronomique in Montpellier established that Dureza was the father of the Syrah grape, with Mondeuse Blanche the mother.
  Mondeuse Blanche is native to the Savoie region, though it has been found in the Ain, Haute-Savoie and Isère departments. The DNA evidence showing that Dureza, an Ardèche variety, and Mondeuse Blanche were the parent vines of Syrah helped to confirm that Syrah was an indigenous French grape variety that originated somewhere in the Rhône-Alpes region; grape geneticist Dr. Carole Meredith speculates that the northern Isère region was the likely birthplace.
  DNA mapping has also revealed some relationship to the Italian wine grape variety Lagrein grown in the Trentino-Alto Adige/Südtirol region of northeast Italy, though the exact relationship is unclear. The most recent research from Swiss grape geneticist Dr. José Vouillamoz, completed in 2006, suggests that Dureza might be an "uncle" to Lagrein and connected together by another red Italian wine grape, Teroldego.
  In the 20th century, ampelographers Louis Levadoux and (decades later) Linda Bisson categorized Dureza as a member of the Pelorsien eco-geogroup along with Bia blanc, Béclan, Durif, Exbrayat, Jacquère, Joubertin, Mondeuse blanche, Peloursin, Servanin and Verdesse.
caption: The Rhône-Alpes region. Dureza is believed to have originated in the Ardèche (#1) in the southwest and moved east/northeast into Drôme (#2) and Isère (#3). Somewhere in this area, most likely in Isère, the vine crossed with Mondeuse Blanche, a variety native to the Savoie region (#4), to produce Syrah.
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