This page is a draft, part of our ongoing wild potato project. I’ll probably be adding information to the species pages through 2020 at least, but I’m making them public since they may be useful even incomplete.

Solanum iopetallum

Synonyms:

Series:

EBN: 2

Ploidy: Hexaploid

Segregation:

Self-compatible:

Cytoplasm Type: D, M, W (Hosaka 2014)

Description

This species can survive frosts down to 26 degrees F (-3.5 C) (Li 1977, as S. brachycarpum).

Condition Level of Resistance Source
 Wart Somewhat resistant Machida-Hirano 2015 (as S. brachycarpum)
 Potato Virus X Somewhat resistant Machida-Hirano 2015 (as S. brachycarpum)
 Root Knot Nematode Somewhat resistant Machida-Hirano 2015 (as S. brachycarpum)
 Frost Somewhat resistant Machida-Hirano 2015 (as S. brachycarpum)
 Heat  Somewhat resistant Machida-Hirano 2015 (as S. brachycarpum)
 Drought  Somewhat resistant Machida-Hirano 2015 (as S. brachycarpum)
     
     
     

Cultivation

The USDA potato genebank has observed that germination of some accessions of this species is inhibited by GA3 (Bamberg 1999).

Crosses with S. tuberosum

 

Female Male Berry Set Seed Set Germination Ploidy Source
 S. tuberosum S. iopetalum (as S. brachycarpum) None None     Jackson (1999)
 S. tuberosum S. iopetalum Low High     Jackson (1999)
 S. iopetalum (as S. iopetalum and S. brachycarpum) S. tuberosum  Moderate Moderate      Jackson (1999)
             
             
             
             
             
             

Crosses with other species

Watanabe (1991) found that 9.3% of varieties of this species produced 2n pollen and Jackson (1999) found 2-15%, which would be effectively dodecaploid and 4EBN.

Female Male Berry Set Seed Set Germination Ploidy Source
             
             
             
             
             
             
             
             
             

Glykoalkaloid content