| genetic variability among flavescence dorée phytoplasmas from different origins in italy and france. | flavescence dorée is a devastating disease of grapevine widespread in several countries in eu such as france, italy and spain. genetic variability among 17 italian and 3 french fd strains was investigated by rflp analyses based on a fragment of the ribosomal protein operon and on the non-ribosomal dna fragment fd9. rflp analysis of the pcr amplified ribosomal protein fragment, coding for the 3' end of rpl22 and the entire rps3 genes, differentiated 4 rp-subgroups among the fd strains and 4 subgr ... | 2002 | 12144771 |