Return to Wild Potato Index Purchase seeds or tubers of Solanum x rechei

Solanum x rechei

Common Name(s)  
Tubers of the wild potato species Solanum x rechei
Solanum x rechei tubers
Code rch
Synonyms  
Clade 4
Series Tuberosa
Ploidy Diploid (2x), Triploid (3x)
EBN Unknown (Probably 2EBN)
Self-compatible  
Genome
AA
Cytoplasm Type  

Description

Solanum x rechei (rechei in honor of Argentinian botanist J.O. Reche) is a nothospecies (natural inter-species hybrid) from Argentina.  The parent species were most likely S. microdontum and S. kurtzianum (Clausen 1998).  It is a weedy species, common in a small area of Argentina where its parent species overlap in distribution.  S. x rechei is notable for being a South American species that will tuberize under long days, a relatively rare trait among the South American wild potatoes.

Most populations of S. x rechei are diploid, but triploid populations also exist (Clausen 1998).

Jarvis (2008) predicts that this species will become extinct in the wild by 2055 due to climate change.

Resistances

Condition Type Level of Resistance Source
Late Blight Fungus Not resistant Bachmann-Pfabe 2019
Potato Cyst Nematode (G. pallida) Invertebrate Not resistant Bachmann-Pfabe 2019

Glykoalkaloid content

Tubers that I have sampled had a strong bitter aftertaste, probably indicating that this species is not safe to eat.

Images

Solanum x rechei plant
Solanum x rechei plant
Solanum x rechei plant
Solanum x rechei plant
Solanum x rechei plant
Solanum x rechei plant
Solanum x rechei flower
Solanum x rechei flower
Above ground plant of the wild potato species Solanum x rechei
Solanum x rechei plant
Solanum x rechei flower
Solanum x rechei flower
Solanum x rechei flower
Solanum x rechei flower
Solanum x rechei berry
Solanum x rechei berry
Berries of the wild potato species Solanum x rechei
Solanum x rechei berries
Tubers of the wild potato species Solanum x rechei
Solanum x rechei tubers
   

Cultivation

Clausen (1998) observed a low rate of pollen staining in this species, indicating reduced male fertility.  I have found that berry production is poor even with hand pollination.

Breeding

Crosses with S. tuberosum

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

Crosses with other species

Jackson (1999) found 8-11% 2n pollen for varieties of this species.

Female Male Berry Set
Seed Set Ploidy Germ Source
             

References

Solanum x rechei at Solanaceae Source

Solanum x rechei at GRIN Taxonomy