MBNL1 and infection: In fact, it’s evident that genes belonging to the EXP gene family, show an increased expression during the initial and intermediate stage of infection (VvEXPA1, VvEXPA5, VvEXPA6, VvEXPA17, VvEXPA18, VvEXPA19), as seen in the infected ‘Marselan’ berries at véraison.