CO-INFECTION OF TOBACCO RATTLE AND CYCAS NECROTIC STUNT VIRUSES IN PAEONIA LACTIFLORA: DETECTION STRATEGIES, POTENTIAL ORIGINS OF INFECTION, AND IMPLICATIONS FOR PAEONIA GERMPLASM CONSERVATION

Increasing reports of tobacco rattle virus (TRV) and cycas 7 ROW WILDFLOWER necrotic stunt virus (CNSV) in herbaceous Paeonia worldwide highlight the importance of conserving the genetic resources of this economically important ornamental and medicinal crop.The unknown origin(s) of infection, differential susceptibility of peony cultivars to these