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Solanum x edinense

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 edn
Synonyms S. salamanii
Clade 4
Series Demissa
Ploidy Pentaploid (5x)
EBN Unknown (probably 4EBN)
Tuberization Photoperiod
Day neutral
Self-compatible No (probably due to male sterility)
Genome
AAAAA
Cytoplasm Type  
Citation
Berthault: Rech. bot. Solanum tub. 142, fig. 41, 42, tab. 8. 1911.

Description

Solanum x edinense distribution map
Solanum x edinense distribution map

Solanum x edinense (edinense refers to Edinburgh and specifically the botanic garden there, where the species was first described) is a natural hybrid species from central Mexico, generally found in areas of potato cultivation. Thought to be a cross of S. demissum and domesticated S. tuberosum. Plants range from three to six feet tall. Blue flowers. Round berries. Possibly male sterile.

 

 

Resistances

The resistances of S. x edinense have received little study, but the wild parent, S. demissum, has a wide range of pest and disease resistances and presumably those will be inherited in some of the progeny.  S. demissum was used commonly in domesticated potato breeding in the early to mid-20th century as a source of resistance traits.

Condition Type Level of Resistance Source
       

Glykoalkaloid content

No information, but intentional crosses between the putative parent species have generally segregated for glycoalkaloid content, with some palatable progeny.

Images

       
       
       

Cultivation

Breeding

This was one of the first wild potato species used in breeding with the domesticated potato.  The variety Brennragis, a S. x edinense x S. tuberosum hybrid, was released in 1936 (Ross 1966).

In the process of recapitulating this hybrid at the Royal Botanic Garden Edginburgh, they found success using S. demissum only as the female parent (Coleman 2018).  They also noted possible cases of hybrid necrosis in the progeny (Coleman 2019).

Crosses with S. tuberosum

Female Male Berry Set
Seed Set Germ Ploidy Source
             

Crosses with other species

Female Male Berry Set
Seed Set Germ Ploidy Source
             

References

Solanum x edinense at Solanaceae Source

Solanum x edinense at GRIN Taxonomy

Solanum x edinense at CIP

2 thoughts on “Solanum x edinense

  1. Max Coleman says:

    At the Royal Botanic Garden Edinburgh we have produced Solanum x edinense by controlled crossing using demissum as mother plants and couple of tuberosum cultivars as fathers. An interesting result has been that the vast majority of offspring show hybrid necrosis. We only have a few good plants. The first has flowered today and is without doubt the desired hybrid.

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