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Solanum neorossii

Description

Solanum neorossii distribution map
Solanum neorossii distribution map

Solanum neorossii (rossii, in honor of German potato breeder Hans D. Ross and neo- because S. rossii had been used previously) is a species found in northern Argentina, close to the Bolivian border.  It was first described in 1983 from materials collected in 1966 (Hawkes 1983).

The chloroplast genome of this species occurs in two different haplotypes (Hosaka 2003).

Resistances

In a study of early blight resistance, Jansky (2008) found that S. neorossii was the most resistant species tested.

Vega (1995) found that this species is more frost tolerant than domesticated potato.

This species carries a resistance gene to powdery mildew caused by Golovinomyces orontii or G. cichoracearum (Park 2009).

Condition Type Level of Resistance Source
Alfalfa Mosaic Virus (AMV) Virus Hypersensitive Horvath 1989
Alternaria solani (Early Blight) Fungus Somewhat resistant Jansky 2008
Erysiphe cichoracearum (Powdery Mildew) Fungus Resistant Park 2009
Globodera pallida (Pale Cyst Nematode) Invertebrate Somewhat resistant Castelli 2003
Globodera pallida (Pale Cyst Nematode) Invertebrate Not resistant Bachmann-Pfabe 2019
Globodera rostochiensis (Potato Cyst/Golden Nematode) Invertebrate Resistant Castelli 2003
Pectobacterium carotovorum (Blackleg/Soft Rot) Bacteria Not resistant Chung 2011
Phytophthora infestans (Late Blight) Fungus Resistant Bachmann-Pfabe 2019
Potato Virus X (PVX) Virus Resistant Horvath 1989

Glykoalkaloid content

Images

Solanum neorossii plant
Solanum neorossii plant
Solanum neorossii plant
Solanum neorossii plant
Solanum neorossii flower
Solanum neorossii flower
Solanum neorossii plant
Solanum neorossii plant
Solanum neorossii berry
Solanum neorossii berry
Solanum neorossii berry
Solanum neorossii berry
Flower of the wild potato species Solanum neorossii
Solanum neorossii flower
 
       

Cultivation

Breeding

Crosses with S. tuberosum

 

Female Male Berry Set Seed Set Germination Ploidy Source
S. tuberosum S. neorossii Minimal None     Jackson (1999)
S. neorossi S. tuberosum Minimal Minimal     Jackson (1999)
             

Crosses with other species

Jackson (1999) found 6-17% 2n pollen for varieties of this species.

Female Male Berry Set Seed Set Germination Ploidy Source
             

References

Solanum neorossii at Solanaceae Source

Solanum neorossii at GRIN Taxonomy