Identification and molecular characterization of phytoplasmas and rickettsia pathogens associated with 'Bunchy Top Symptom' (BTS) and 'Papaya Bunchy Top' (PBT) of papaya in Cuba

► Two new phytoplasma subgroups. ► Phytoplasmas associated with BTS and PBT symptoms. ► Mixed infections imply new epidemiological constraints.