|EBN||Unknown (probably 1EBN)|
Solanum tarnii (tarnii, in honor of T.R. Tarn, who was involved in the first collection of this species) is native to Mexico, primarily Hidalgo. Plants roughly 2 to 3 feet tall. White flowers. Very little has been written about this species.
Jarvis (2008) predicts that this species will become extinct in the wild by 2055 due to climate change.
Vega (1995) found that this species is more frost tolerant than domesticated potato.
|Condition||Type||Level of Resistance||Source|
|Colorado Potato Beetle||Resistant||Pelletier (2007)|
|Late Blight||Fungus||Somewhat resistant||Bachmann-Pfabe 2019|
|Potato Cyst Nematode (G. pallida)||Invertebrate||Not resistant||Bachmann-Pfabe 2019|
|Potato Virus Y, C Strain||Resistant||Takacs 1999|
Crosses with S. tuberosum
|S. tuberosum||S. tarnii||None||None||Jackson (1999)|
|S. tarnii||S. tuberosum||None||None||Jackson (1999)|
Crosses with other species
Jackson (1999) found that 7-13% of varieties of this species produced 2n pollen, which would be effectively tetraploid and 2EBN.