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Solanum vernei

Common Name(s)  
Tubers of the wild potato species Solanum vernei
Solanum vernei tubers
Code vrn
Synonyms S. ballsii
Clade 4
Series Tuberosa
Ploidy Diploid (2x)
EBN 2
Self-compatible  
Genome
AA
Cytoplasm Type W (Hosaka 2009)

Description

Solanum vernei distribution map
Solanum vernei distribution map

Solanum vernei (vernei in honor of French botanist Claude Verne) is a wild potato species native to Argentina and just barely reaching into Bolivia.  Plants can reach a bit more than four feet tall.  Purple flowers.  Berries are small and light green.  Stolons more than two feet long.  Tubers are small, whitish, round to ovoid.  This species can survive frosts down to 23 degrees F (-5 C) (Li 1977).  Vega (1995) found that this species is more frost tolerant than domesticated potato.

Condition Type Level of Resistance Source
Late Blight Fungus Somewhat resistant Bachmann-Pfabe 2019
Potato Cyst Nematode (G. pallida) Invertebrate Somewhat resistant Bachmann-Pfabe 2019

Glykoalkaloid content

Van Gelder (1988) found high levels of both solanine/chaconine and solasodine glycoalkaloids in this species.  TGA levels ranged from 622 to 677 mg / 100 g.

Images

Solanum vernei plant
Solanum vernei plant
Solanum vernei plant
Solanum vernei plant
Solanum vernei flower
Solanum vernei flower
Solanum vernei flower
Solanum vernei flower
Solanum vernei flower
Solanum vernei flower
Flower of the wild potato species Solanum vernei
Solanum vernei flower
Berries of the wild potato species Solanum vernei
Solanum vernei berries
Tubers of the wild potato species Solanum vernei
Solanum vernei tubers
       

Cultivation

Towill (1983) found that seeds of this species stored at 1 to 3 degrees C germinated at 96% after 17 years.

Breeding

This species has been included in the pedigrees of at least 19 hybrid cultivars of Solanum tuberosum.

Crosses with S. tuberosum

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

Crosses with other species

Jackson (1999) found 2-20% 2n pollen for varieties of this species.

Female Male Berry Set
Seed Set Ploidy Germ Source
             

References

Solanum vernei at Solanaceae Source

Solanum vernei at GRIN Taxonomy