Proteins unique to tobacco mosaic virus (TMV)-infected plants were detected
in the 1970s by electrophoretic analyses of extracts of virus-infected tis
sues, comparing their proteins to those generated in extracts of uninfected
tissues. The genome organization of TMV was deduced principally from studi
es involving in vitro translation of proteins from the genomic and subgenom
ic messenger RNAs. The ultimate analysis of the TMV genome came in 1982 whe
n P. Goelet and colleagues sequenced the. entire genome. Studies leading to
the elucidation of the TMV genome organization are described below.