|Common Name(s)||Papa de Amaa, Auqui Papa|
|Cytoplasm Type||W (Hosaka 2009)|
||Juzepczuk: Izv. Akad. Nauk SSSR, Ser. Biol. 2: 313. 1937.|
Solanum acroglossum (acroglossum means something like top-tongued and probably refers to the leaflet arrangement) is a wild potato species from Peru. Plants are generally a bit smaller than domesticated diploids, with sparser foliage. Tubers are very unusual, with alternating swellings and restrictions, like beads on a string (the technical term is moniliform). Flowers light blue. It is found at elevations from about 8,200 to 12,100 feet (2500 to 3700 meters) (Ochoa 2004).
This species appears to produce unique compounds that confer resistance to the Colorado potato beetle. S. acroglossum lacks the trichomes that are often associated with CPB resistance and also lacks high concentrations of glycoalkaloids, but contains hydroxycoumarines, a class of compounds that includes at least one isomer for which anti-larval activity has been noted (Tai 2014).
|Condition||Type||Level of Resistance||Source|
|Colorado Potato Beetle||Invertebrate||Resistant||Pelletier 2007|
|Late Blight||Fungus||Somewhat Resistant||Ochoa 2004|
A spectrographic analysis of this species showed very low levels of solanine, chaconine, and a selection of lesser glycoalkaloids, including tomatines and demissines (Tai 2014).
I have found Solanum acroglossum easy to germinate using the standard conditions for S. tuberosum.
Crosses with S. tuberosum
Watanabe (1991) found that 3.6% (which was only 1 plant) of varieties of this species produced 2n pollen, which would be effectively tetraploid and 4EBN.
|S. tuberosum||S. acroglossum||None||None||Jackson (1999)|
Crosses with other species
|S. acroglossum||S. candolleanum (as S. ambosinum)||Low||High||Ochoa (2004)|
|S. acroglossum||S. chiquidenum||Low||Moderate||Ochoa (2004)|
|S. acroglossum||S. chomatophilum||Moderate||Low||Ochoa (2004)|
|S. candolleanum (as S. ambosinum)||S. acroglossum||None||None||Ochoa (2004)|
|S. chiquidenum||S. acroglossum||Moderate||None||Ochoa (2004)|