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Solanum multiinterruptum

Common Name(s)   A black and white photo of a tray of Solanum brevicaule tubers. They are about 1 to 2 inches long, oval, and similar in form to baking potatoes.
Code mtp
Synonyms S. chrysoflorum, S. moniliforme
Clade 4
Series Tuberosa
Ploidy Diploid (2x), Triploid (3x)
EBN 2
Self-compatible  
Genome
AA
Cytoplasm Type W, M (Hosaka 2009, as W,C)
Citation
Bitter: Repert. Spec. Nov. Regni Veg. 12: 56. 1913.

Description

Solanum multiinterruptum distribution Map note

Solanum multiinterruptum (multiinterruptum means “multiply interrupted,” presumably referring to the large number of small leaflets) is a wild potato species from northern Peru.  Plants to about three and a half feet tall.  Flowers blue/purple or white.  Berries small and ovoid.

Resistances

Vega (1995) found that this species is about as frost tolerant as domesticated potato.

Condition Type Level of Resistance Source
Aphids   Resistant Alvarez 2006
Golden nematode (G. rostochiensis) Invertebrate Not resistant Castelli 2003
Late Blight Fungus Somewhat resistant Gonzales 2002
Potato Cyst Nematode (G. pallida) Invertebrate Somewhat resistant Castelli 2003
Potato Cyst Nematode (G. pallida) Invertebrate Not resistant Bachmann-Pfabe 2019

Glykoalkaloid content

Johns (1990) found levels of 50 and 68mg/100g for two accessions tested.  The primary glycoalkaloids were solanine and chaconine.  They also found a level of 42mg/100g but that accession was later reclassified.

Images

       
       
       

Cultivation

The USDA potato genebank has observed that germination of some accessions of this species is inhibited by GA3 (Bamberg 1999).

Breeding

Crosses with S. tuberosum

Female Male Berry Set Seed Set Germination Ploidy Source
S. tuberosum S. multiinterruptum Minimal Minimal     Jackson (1999)
             

Crosses with other species

Jackson (1999) found 2-16% 2n pollen for varieties of this species.

Female Male Berry Set Seed Set Germination Ploidy Source
             

References

Solanum multiinterruptum at Solanaceae Source

Solanum multiinterruptum at GRIN Taxonomy