, Volume 109, Issue 1, pp 51–67 | Cite as

Crossability between cultivated and wild tuber-and non-tuber-bearing Solanums

  • S.A. Jackson
  • R.E. HannemanJr.


The cultivated potato has over 200 extant wild relatives many of which contain genes valuable for disease resistance, hardiness, processing and agronomic traits. Crossability of these wild species directly with the cultivated potato is complicated by several reproductive phenomena such as stylar and ploidy barriers and Endosperm Balance Numbers (EBN). However, a systematic analysis of crossability with many of these wild relatives has never fully been examined. Reciprocal crosses were made between cultivated potato and over 400 wild potato accessions; stylar barriers and 2n gamete production were examined as was the fertility of many of the putative hybrids. Generally, the seed/fruit ratio increased the more closely related the species were to the cultivated potato. However, a few crosses were successful in spite of predicted failure due to ploidy or EBN differences.

Solanum crossability 2n gametes hybridization wild species potato 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Brown, C.R., 1988. Characteristics of 2n pollen producing triploid hybrids between Solanum stoloniferum and cultivated diploid potatoes. Amer Potato J 65: 75-84.Google Scholar
  2. Carputo, D., T. Cardi, L. Frusciante & S.J. Peloquin, 1995. Male fertility and cytology of triploid hybrids between tetraploid Solanum commersonii (2n = 4_= 48, 2EBN) and Phureja-Tuberosum haploid hybrids (2n = 2_= 24, 2EBN). Euphytica 83: 123-129.CrossRefGoogle Scholar
  3. den Nijs, T.P.M. & S.J. Peloquin, 1977. 2n gametes in potato species and their function in sexual polyploidization. Euphytica 26: 585-600.CrossRefGoogle Scholar
  4. Dionne, L.A., 1961. Mechanisms of interspecific incompatibility in tuber-bearing Solanum species. Amer Potato J 38: 73-77.Google Scholar
  5. Ehlenfeldt, M.K. & R.E. Hanneman Jr., 1984. The use of Endosperm Balance Number and 2n gametes to transfer exotic germplasm in the potato. Theor Appl Genet 68: 155-161.CrossRefGoogle Scholar
  6. Fritz, N.K. & R.E. Hanneman Jr., 1989. Interspecific incompatibility due to stylar barriers in tuber-bearing and closely related non-tuber-bearing Solanums. Sex Plant Reprod 2: 184-192.CrossRefGoogle Scholar
  7. Grun, P. & M. Aubertin, 1966. The inheritance and expression of unilateral incompatibility in Solanum. Heredity 21: 131-138.Google Scholar
  8. Hawkes, J.G., 1990. The Potato: Evolution, Biodiversity and Genetic Resources. Smithsonian Institution Press. Washington, D.C. 259 p.Google Scholar
  9. Hermsen, J.G.Th., 1994. Introgression of genes from wild species, including molecular and cellular approaches. In: J.E. Bradshaw & G.R. Mackay (Eds.), Potato Genetics, pp. 515-539. CAB International. University Press, Cambridge. England.Google Scholar
  10. Hermsen, J.G.Th. & M.S. Ramanna, 1976. Barriers to hybridization of Solanum bulbocastanum Dun. and S. verrucosum Schlechtd. and structural hybridity in their F1 plants. Euphytica 25: 1-10.CrossRefGoogle Scholar
  11. Hermundstad, S.A. & S.J. Peloquin, 1985. Male fertility and 2n pollen production in haploid-wild species hybrids. Amer Potato J 62: 479-487.Google Scholar
  12. Hougas, R.W. & S.J. Peloquin, 1959. Decapitation and genetic markers as related to haploidy in Solanum tuberosum. Eur Potato J 2: 176-183.CrossRefGoogle Scholar
  13. Johnston, S.A., T.P.M. den Nijs, S.J. Peloquin & R.E. Hanneman Jr., 1980. The significance of genic balance to endosperm development in interspecific crosses. Theor Appl Genet 57: 5-9.Google Scholar
  14. Johnston, S.A. & R.E. Hanneman Jr., 1982. Manipulations of Endosperm Balance Number overcome crossing barriers between diploid Solanum species. Science 217: 446-448.Google Scholar
  15. Louwes, K.M., R. Hoekstra & K. Mattheij, 1992. Interspecific hybridization between the cultivated potato Solanum tuberosum subspecies tuberosum L. and the wild species S. circaeifolium Bitter exhibiting resistance to Phytophthora infestans (Mont.) de Bary and Globodera pallida (Stone) Behrens. Theor Appl Genet 84: 362-370.CrossRefGoogle Scholar
  16. Martin, F.W., 1958. Staining and observing pollen tubes in the style by means of fluorescence. Stain Technol 34: 125-128.Google Scholar
  17. Novy, R.G. & R.E. Hanneman Jr., 1991. Hybridization between Gp. Tuberosum haploids and 1EBN wild potato species. Amer Potato J 68: 151-169.Google Scholar
  18. Pandey, K.K., 1962. Interspecific incompatibility in Solanum species. Amer J Bot 49: 874-882.CrossRefGoogle Scholar
  19. Ramanna, M.S. & J.G.Th. Hermsen, 1974. Unilateral ‘eclipse sterility’ in reciprocal crosses between Solanum verrucosum Schlechtd. and diploid S. tuberosum L. Euphytica 23: 417-421.CrossRefGoogle Scholar
  20. Ramanna, M.S. & J.G.Th. Hermsen, 1976. Barriers to hybridization of Solanum bulbocastanum Dun. and S. verrucosum Schlechtd. and structural hybridity in their F1 plants. Euphytica 25: 1-10.CrossRefGoogle Scholar
  21. Watanabe, K.N., A. Orrillo, S. Vega, J.P.T. Valkonen, E. Pehu, A. Hurtado & S.D. Tanksley, 1995. Overcoming crossing barriers between non-tuber-bearing and tuber-bearing Solanum species: towards potato germplasm enhancement with a broad spectrum of solanaceous genetic resources. Genome 38: 27-35.Google Scholar

Copyright information

© Kluwer Academic Publishers 1999

Authors and Affiliations

  • S.A. Jackson
    • 1
  • R.E. HannemanJr.
    • 2
  1. 1.United States Department of Agriculture, Agricultural Research Service and the Wisconsin Agricultural Experiment StationCooperative investigation of the Vegetable Crops Research UnitUS
  2. 2.Department of Horticulture, University of WisconsinUSDA, Agricultural Research ServiceMadisonU.S.A

Personalised recommendations