Genetic and bioclimatic variation in Solanum pimpinellifolium

  • Elena Zuriaga
  • José M. Blanca
  • Laura Cordero
  • Alicia Sifres
  • William G. Blas-Cerdán
  • Rafael Morales
  • Fernando Nuez
Research Article

DOI: 10.1007/s10722-008-9340-z

Cite this article as:
Zuriaga, E., Blanca, J.M., Cordero, L. et al. Genet Resour Crop Evol (2009) 56: 39. doi:10.1007/s10722-008-9340-z

Abstract

Solanum pimpinellifolium, due to its close relationship to S. lycopersicum, has been a genetic source for many commercially important tomato traits. It is a wild species found in the coastal areas of Peru and Ecuador. In this study, the genetic variation of S. pimpinellifolium was studied using the diversity found in 10 microsatellites in 248 plants spread throughout its entire distribution area, including Ecuador, which has been underrepresented in previous studies. Peruvian and Ecuadorian accessions are genetically quite differentiated. A possible cause of these differences could be the non-uniform nature of the coastal Ecuadorian and Peruvian climates, seeing as an important correlation between genetic differentiation and climate has been found. In addition, Ecuadorian and south Peruvian accessions have a lower genetic diversity and a higher homozygosity due to their higher autogamy, lower population size, and possible colonization bottlenecks. The Galápagos Islands population is an extreme case, with no diversity, likely caused by a recent colonization from the northern continental Ecuadorian region where genetically identical plants have been found.

Keywords

Andean Climate Colonization Genetic structure Microsatellite Solanum pimpinellifolium 

Supplementary material

Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  • Elena Zuriaga
    • 1
  • José M. Blanca
    • 1
  • Laura Cordero
    • 1
  • Alicia Sifres
    • 1
  • William G. Blas-Cerdán
    • 2
  • Rafael Morales
    • 3
  • Fernando Nuez
    • 1
  1. 1.Instituto de Conservación y Mejora de la Agrodiversidad Valenciana (COMAV)Universidad Politécnica de ValenciaValenciaSpain
  2. 2.Universidad Nacional de TrujilloTrujilloPeru
  3. 3.Facultad de Ciencias AgrícolasUniversidad Nacional de LojaLojaEcuador

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