Solanum venturii

Description

Solanum venturii distribution Map note

Solanum venturii is a wild potato species native to northern Argentina.  This species can survive frosts down to 26 degrees F (-3.5 C) (Li 1977).  Vega (1995) found that this species is less frost tolerant than domesticated potato.

The specific epithet, venturii, honors Italian botanist Enrico Venturi.  While there is no completely standardized pronunciation for scientific names, the most common way to pronounce this species is probably so-LAY-num ven-TUR-ee-eye.

Resistances

Some accessions of this species carry the Rpi-vnt1 gene, conferring late blight resistance.

The resistance genes used in the genetically engineered Innate potato line come from S. venturii.

Condition Type Level of Resistance Source
Globodera pallida (Pale Cyst Nematode) Invertebrate Resistant Castelli 2003
Globodera pallida (Pale Cyst Nematode) Invertebrate Not resistant Bachmann-Pfabe 2019
Globodera rostochiensis (Potato Cyst/Golden Nematode) Invertebrate Resistant Castelli 2003
Phytophthora infestans (Late Blight) Fungus Resistant Bachmann-Pfabe 2019
Phytophthora infestans (Late Blight) Fungus Some resistance Karki 2020

Glykoalkaloid content

Van Gelder (1988) found TGA levels ranging from 138 to 250 mg  / 100 g for this species.  These levels are far in excess of the safety limit of 20 mg / 100 g, so this species appears to have little potential as an edible.

Images

Cultivation

Towill (1983) found that seeds of this species stored at 1 to 3 degrees C germinated at 100% after 16 years and 78% after 25 years.

Breeding

Crosses with S. tuberosum

Female Male Berry Set
 Seed Set Ploidy Germ Source
S. tuberosum S. venturii Low None Jackson (1999)
S. venturii S. tuberosum Minimal Minimal Jackson (1999)

Crosses with other species

Jackson (1999) found 4-19% 2n pollen for this species.

Female Male Berry Set
 Seed Set Ploidy Germ Source

References

Solanum venturii at Solanaceae Source

Solanum venturii at GRIN Taxonomy