In 2003, DNA evidence confirmed that Carignan/Cariñena was the same variety as the Mazuelo (or Mazuela) grape of Rioja. This was followed by the discovery in 2007 that the Bovale di Spagna and Bovale Grande grapes of Sardinia were also identical to Carignan. DNA profiling was also able to distinguish Carignan as a distinct variety from other varieties known as Bovale (including Graciano which is known on Sardinia as Bovale Sardo and Bovale Cagnulari) as well as the Valencia wine grape Bobal which is sometimes field blended in the Cariñena (DO) with Carignan.