 However, DNA testing has dismissed that theory.Persan was used to crossed with Peloursin to create the red grape variety Joubertin.Over the years Persan has been known under a variety of synonyms including Aguyzelle, Aguzelle, Bâtarde, Bâtarde longue, Beccu (in Savoie), Becouet, Becuet (also spelled as Bécuet or Becuét in the Val di Susa region of Piedmont), Becuette (sometimes spelled as Bécuette), Begu, Berla'd Crava Cita, Berla Cita, Berlo Citto (in the Val Chisone region of Piedmont), Biquet, Bucuet, Cul de Poule, Étraire (in Isère), Étrière, Étris (in Isère), Guzelle, Moirans, Persan Noir, Petit Becquet, Posse de Chèvre, Pousse de Chèvre, Presan, Pressan, Princens (in Savoie), Prinsan, Prinssens, Rives, Sérine (in Isère), Sérinne pointue, Siranèze pointue, Siranne (in Isère) and Siranne pointue.