Solanum chacoense

Solanum chacoense is a species of wild potato. It is native to South America, where it can be found in Brazil, Bolivia, Argentina, Peru, Uruguay, and Paraguay.[1] It "is one of the most widely distributed wild potato species."[2] It grows as a common weed in disturbed habitat such as crop fields.[3] It can also be found in Australia, China, the United States, England, New Zealand, and elsewhere as an introduced species.[3]

Solanum chacoense
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Solanales
Family: Solanaceae
Genus: Solanum
Species:
S. chacoense
Binomial name
Solanum chacoense

This plant has been extensively researched in the quest to find ways to improve its relative, the cultivated potato (Solanum tuberosum). It is sexually compatible with the common potato.[3] It was likely introduced to regions outside its usual range when it was imported for study and breeding with the potato. Many of the sites where it has been found are next to plant breeding stations and botanical gardens.[3] This wild species contains leptine glycoalkaloids which make it resistant to the Colorado potato beetle (Leptinotarsa decemlineata), a pest of potato crops.[4] It has also shown resistance to verticillium wilt[5] and potato leafroll virus.[6]

References
  1. "Solanum chacoense". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA). Retrieved 29 January 2018.
  2. Miller, J. T. and D. M. Spooner. (1996). Introgression of Solanum chacoense (Solanum sect. Petota): Upland populations reexamined. Systematic Botany 21(4) 461-75.
  3. Simon, R., et al. (2010). Wild and cultivated potato (Solanum sect. Petota) escaped and persistent outside its natural range. Invasive Plant Science and Management 3 286-93.
  4. Cooper, S. G., et al. (2009). Combining engineered resistance, avidin, and natural resistance derived from Solanum chacoense Bitter to control Colorado Potato Beetle (Coleoptera: Chrysomelidae). J Econ Entomol 102(3) 1270-80.
  5. Lynch, D. R., et al. (1997). Identification of a gene conferring high levels of resistance to Verticillium wilt in Solanum chacoense. Plant Disease 81(9) 1011-14.
  6. Brown, C. R. and P. E. Thomas. (1993). Resistance to potato leafroll virus derived from Solanum chacoense: characterization and inheritance. Euphytica 74(1-2) 51-57.
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