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Solanum huancabambense

Common Name(s) 
Codehcb
Synonyms 
Clade3
SeriesYungasense
PloidyDiploid (2x)
EBN2
Tuberization Photoperiod
Short day
Self-compatibleNo
Genome
PP
Cytoplasm Type 
Citation
Ochoa: Agronomía (Lima) 26(2): 109. 1959.

Description

Solanum huancabambense distribution map
Solanum huancabambense distribution map

Based on the published descriptions of this species, it seems that I might have a mismatch here.  I have gone back to the original genebank accessiona and confirmed that I get seedlings of the same type, so I’m not sure if this is an unusual accession of the species or a mistake by the genebank.  As soon as I figure it out, I will make corrections.

Solanum huancabambense (huancabambense meaning from Huancabamba, Peru) is a species of small distribution in northern Peru.  Plants reach a little more than a foot tall.  Leaves are shiny and hairless (glabrous).  White flowers. Overall this is a very attractive plant and it seems like it might have some ornamental potential.

Resistances

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

This species resists the AVR2 effector of the late blight organism, one method of resistance to late blight (Aguilera-Galvez 2018).  It most likely evolved this trait separately from North American species that have been more commonly used in late blight breeding, so it may be useful for broadening the genetic basis of that resistance.  On the other hand, Garry (2001) found that late blight lesions were larger on S. huancabambense than on domesticated potato (possibly an indication of protective sensitivity to infection).

ConditionTypeLevel of ResistanceSource
Late BlightFungusSomewhat resistantAguilera-Galvez 2018

Glykoalkaloid content

No information.

Images

Berries of the wild potato species Solanum huancabambense
Solanum huancabambense berries
Berries of the wild potato species Solanum huancabambense
Solanum huancabambense berries
 
    

Cultivation

I have found this species difficult to germinate.  It might require different conditions than the standard for S. tuberosum.

Breeding

Crosses with S. tuberosum

FemaleMaleBerry Set
Seed SetGermPloidySource
S. huancabambenseS. tuberosumNoneNone  Jackson (1999)
S. tuberosumS. huancabambenseNoneNone  Jackson (1999)

Crosses with other species

Jackson (1999) found 4-12% 2n pollen for varieties of this species.

FemaleMaleBerry Set
Seed SetGermPloidySource
       

References

Solanum huancabambense at Solanaceae Source

Solanum huancabambense at GRIN Taxonomy

Solanum huancabambense at CIP

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