Diversidad genética de papas nativas (Solanum spp.) conservadas en cultivares nativos del Perú

Julián Soto, Tulio Medina, Yeny Aquino, Rolando Victor Estrada Jimenez

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

4 Citas (Scopus)

Resumen

This paper analyzes the genetic diversity of 79 accessions of native potato varieties (Solanum spp.) using 18 microsatellite markers. A random sample from Ayacucho, Cajamarca, Cusco, Huancavelica and Puno from "chacras" of farmers who collaborated with the "In situ conservation of native crops and wild relatives" were used. 17 markers amplified one single polymorphic locus, the mean number of alleles per locus was 8.79. The mean similarity was 0.62 and clustering indexes varied between 0.41 and 0.98. 19 loci showed a total of 166 alleles. Cuzco had the highest number of alleles (130 alleles). Of the 166 characterized alleles, 72 alleles (43.37%) were common or shared with 5 sampling sites. Puno had the highest number of exclusive alleles (8 alleles). The 42 varieties of S. tuberosum subsp. andigena showed a mean diversity of 0.74 and 18 varieties of S. x chaucha an average diversity of 0.70. Polymorphism (PIC = 0.55 to 0.85) and genetic diversity indices show that microsatellites evaluated can identify high levels of genetic diversity, but also are not sufficient to discriminate differentiated by origin or species groups. Our analyzes indicate a high genetic diversity and are consistent with inventories and morphological characterizations performed in situ, we can also conclude that there would be a common pool of genes would be found widely distributed among the regions studied.

Título traducido de la contribuciónGenetic diversity of native potatoes (Solanum spp.) conserved in landraces from Peru
Idioma originalEspañol
Páginas (desde-hasta)215-222
Número de páginas8
PublicaciónRevista Peruana de Biologia
Volumen20
N.º3
EstadoPublicada - mar 2014
Publicado de forma externa

Palabras clave

  • Genetic diversity
  • In situ conservation
  • Microsatellites
  • Native potato
  • SSR

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