Plant Systematics and Evolution

, Volume 277, Issue 3, pp 143–151

Homoploid hybridization in the origin and evolution of wild diploid potato species

  • Ricardo W. Masuelli
  • Elsa L. Camadro
  • Luis E. Erazzú
  • María C. Bedogni
  • Carlos F. Marfil
Review

DOI: 10.1007/s00606-008-0116-x

Cite this article as:
Masuelli, R.W., Camadro, E.L., Erazzú, L.E. et al. Plant Syst Evol (2009) 277: 143. doi:10.1007/s00606-008-0116-x

Abstract

The potatoes, Solanum L. section Petota Dumortier, are a group of species that possess a very broad range of biological diversity, and a wide geographical distribution in the Americas. These species constitute euploid series with somatic chromosome numbers ranging from 2n = 2x = 24 to 2n = 6x = 72. Although special attention has been given to the origin of polyploid potato species, principally the cultivated forms, that are major food crops, and hybridization has been accepted as an important evolutionary force in the section, the mechanisms involved in the origin and evolution of the diploid species have not been elucidated. Herein, we propose that homoploid hybridization is the main mechanism involved in the origin and evolution of the diploid potato species, and discuss the evidences that support our proposal.

Keywords

Wild potato speciesHybridizationIntrogressionSpeciation

Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  • Ricardo W. Masuelli
    • 1
    • 5
    • 6
  • Elsa L. Camadro
    • 2
    • 6
  • Luis E. Erazzú
    • 3
  • María C. Bedogni
    • 2
    • 6
  • Carlos F. Marfil
    • 4
    • 6
  1. 1.Laboratorio de Biología MolecularINTA La Consulta, CONICETMendozaArgentina
  2. 2.EEA Balcarce, INTA and Facultad de Ciencias AgrariasUniversidad Nacional de Mar del Plata (UNMdP)Buenos AiresArgentina
  3. 3.EEA FamailláINTATucumánArgentina
  4. 4.Laboratorio de Biología Molecular, Facultad de Ciencias AgrariasU.N. de CuyoMendozaArgentina
  5. 5.Estación Experimental Agropecuaria (EEA) La Consulta, Instituto Nacional de Tecnología Agropecuaria (INTA) and Facultad de Ciencias AgrariasUniversidad Nacional de CuyoMendozaArgentina
  6. 6.Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)Buenos AiresArgentina