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The red variety comes from Portugal, Synonyms are Grossa, Tinta Grossa and Tinta Grossa d'Alentejo. She may despite morphological Similarities or the seemingly indicative synonym not with the varieties Grossa. Marufo or Tinta Barroca be confused (all synonymous with Tinta Grossa). According to done in 2013 DNA analysis it comes from a presumably natural cross between To lift x Alfrocheiro, However, this is based on only 20 DNA markers (see under molecular Genetics ). From a cross Marufo x Carrega Tinto is the variety Preto Martinho emerged. The species is in the range Tras-os-Montes grown. In 2010, were reported by 17 hectares of vineyards (Kym Anderson ).
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