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Solanum trifidum

Common Name(s)  
Tubers of the wild potato species Solanum trifidum
Solanum trifidum tubers
Code trf
Synonyms  
Clade 1
Series Pinnatisecta
Ploidy Diploid (2x)
EBN 1
Self-compatible No
Genome
BB
Cytoplasm Type  

Description

Solanum trifidum distribution map
Solanum trifidum distribution map

Solanum trifidum (trifidum means divided into three and probably refers to the leaflets) is native to the states of Michoacan and Jalisco in Mexico, where it is primarily found in pine and oak forests and as a weed of cultivated fields.  Plants range from just a few inches to about three feet tall.  Tubers reach about an inch in diameter and are white or bluish.  White flowers.  Berries are unusual, very long and tapering.

Jarvis (2008) predicts that this species will lose 85% of its present range by 2055 due to climate change, most likely entailing a critical loss of genetic diversity.

Resistances

This species can survive frosts down to 26 degrees F (-3.5 C) (Li 1977).  Vega (1995) found that this species is about as frost tolerant as domesticated potato.

Pelletier (1999) found that Colorado potato beetles have increased adult and larval mortality and low egg production on this species.

Condition Type Level of Resistance Source
Colorado potato beetle   Somewhat resistant Pelletier 1999
Golden nematode (G. rostochiensis) Invertebrate Somewhat resistant Castelli 2003
Late Blight Fungus Somewhat resistant Bachmann-Pfabe 2019
Potato Cyst Nematode (G. pallida) Invertebrate Somewhat resistant Castelli 2003
Potato Cyst Nematode (G. pallida) Invertebrate Somewhat resistant Bachmann-Pfabe 2019

Glykoalkaloid content

Images

Solanum trifidum plant
Solanum trifidum plant
Solanum trifidum plant
Solanum trifidum plant
Solanum trifidum leaves
Solanum trifidum leaves
Solanum trifidum leaf
Solanum trifidum leaf
Solanum trifidum flower buds
Solanum trifidum flower buds
Solanum trifidum plant
Solanum trifidum plant
Tubers of the wild potato species Solanum trifidum
Solanum trifidum tubers
 
       

Cultivation

Breeding

Crosses with S. tuberosum

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

Crosses with other species

Watanabe (1991) found that no varieties of this species produced 2n pollen, but Jackson (1999) found 3-15%.

Female Male Berry Set
Seed Set Ploidy Germ Source
             

References

Solanum trifidum at Solanaceae Source

Solanum trifidum at GRIN Taxonomy

 

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