Pospiviroid
Encyclopedia
Pospiviroid is a genus
of viroid
which most commonly infects tubers. It belongs to the family pospiviroidae
.
The first viroid discovered was a pospiviroid, the PSTVd species (potato spindle tuber viroid).
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...
of viroid
Viroid
Viroids are plant pathogens that consist of a short stretch of highly complementary, circular, single-stranded RNA without the protein coat that is typical for viruses. The smallest discovered is a 220 nucleobase scRNA associated with the rice yellow mottle sobemovirus...
which most commonly infects tubers. It belongs to the family pospiviroidae
Pospiviroidae
The Pospiviroidae are a family of viroids, including the first viroid to be discovered, PSTVd. Their secondary structure is key to their biological activity. The classification of this family is based on differences in the conserved central region sequence...
.
The first viroid discovered was a pospiviroid, the PSTVd species (potato spindle tuber viroid).