Solanum andreanum

Common Name(s)	Papa de vieja
Code	adr
Synonyms	S. baezense, S. burtonii, S. correllii, S. cyanophyllum, S. paucijugum, S. pichinchense, S. regularifolium, S. serratoris, S. solisii, S. suffrutescens, S. tuquerrense
Clade	3
Series	Tuberosa
Ploidy	Diploid (2x), tetraploid (4x)
EBN	2
Self-compatible	No
Cytoplasm Type

Description

Solanum andreanum is a species found in Ecuador and Colombia, growing at elevations between about 11,500 and 13,000 feet. Plants a little more than a foot tall. Flowers large, purple.

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

Condition	Level of Resistance	Source
Potato Virus Y	Somewhat Resistant	Chung 2011

Glykoalkaloid content

Images

Cultivation

I have found this species slow to germinate using the standard conditions for S. tuberosum. The USDA potato genebank has observed that germination of some accessions of this species is inhibited by GA3 (Bamberg 1999).

Breeding

Crosses with S. tuberosum

Watanabe (1991) found that 13.9% of varieties of this species produced 2n pollen (calculated from the results for S. andreanum and S. tuquerrense, which has since been reclassified as S. andreanum), which would be effectively tetraploid and 4EBN.

Female	Male	Berry Set	Seed Set	Germination	Ploidy	Source
S. tuberosum	S. andreanum (including S. paucijugum, S. solisii, and S. tuquerrense)	None	None			Jackson (1999)
S. andreanum (including S. paucijugum, S. solisii, and S. tuquerrense)	S. tuberosum	None	None			Jackson (1999)