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Solanum huancabambense

Common Name(s)  
Tubers of the wild potato species Solanum huancabambense
Solanum huancabambense tubers
Code hcb
Synonyms  
Clade 3
Series Yungasense
Ploidy Diploid (2x)
EBN 2
Tuberization Photoperiod
Short day
Self-compatible No
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).

Condition Type Level of Resistance Source
Late Blight Fungus Somewhat resistant Aguilera-Galvez 2018
Late Blight Fungus Not resistant Gonzales 2002

Glykoalkaloid content

No information.

Images

Solanum huancabambense plant
Solanum huancabambense plant
Solanum huancabambense plant
Solanum huancabambense plant
Solanum huancabambense flower buds
Solanum huancabambense flower buds
Solanum huancabambense flower
Solanum huancabambense flower
Solanum huancabambense flower
Solanum huancabambense flower
Solanum huancabambense flower
Solanum huancabambense flower
Berries of the wild potato species Solanum huancabambense
Solanum huancabambense berries
Berries of the wild potato species Solanum huancabambense
Solanum huancabambense berries
Tubers of the wild potato species Solanum huancabambense
Solanum huancabambense tubers
     

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

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

Crosses with other species

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

Female Male Berry Set
Seed Set Germ Ploidy Source
             

References

Solanum huancabambense at Solanaceae Source

Solanum huancabambense at GRIN Taxonomy

Solanum huancabambense at CIP

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