American Journal of Potato Research

, Volume 78, Issue 3, pp 197–207 | Cite as

Taxonomy and new collections of wild potato species in Central and Southern Peru in 1999

  • Alberto R. Salas
  • David M. Spooner
  • Zósimo Huamán
  • Rafael Vinci Torres Maita
  • Roel Hoekstra
  • Konrad Schüler
  • Robert J. Hijmans
Article

Abstract

Peru contains about half of the described wild potato taxa, and many of these are not yet preserved in genebanks. This paper reports results of the second of a series of five planned collecting expeditions to Peru. Collections were made in the central Peruvian departments of Ancash, Huancavelica, La Libertad, and Lima, from March 8 to April 25,1999. They follow collections in 1998 in the southern Peruvian departments of Apurimac, Arequipa, Cusco, Moquegua, Puno, and Tacna. We collected 101 germplasm accessions, including first germplasm collections of the following 22Solanum taxa:Solanum amayanum, S. anamatophilum, S. arahuayum (lost in germplasm increase),S. augustii, S. bill- hookeri, S. cantense, S. chavinense, S. chomatophilum var. subnivale, S. chrysoflorum, S. gracilifrons, S. hapalos um, S. huarochiriense, S. hypacrarthrum, S.jalcae, S. moniliforme, S. multiinterruptum f. longipilosum, S. multiinterruptum var. machaytambinum, S. peloquinianum, S. rhombilanceolatum, S. simplicissimum, S. taulisense (lost in germplasm increase), andS. wittmackii. In addition, new collections were made of the under-collected speciesS. hastiforme (three collections). The above taxonomy is that used in planning our expedition, that we compare to a new treatment of Peruvian wild potatoes published by C. Ochoa in 1999. This paper reports the collection and new species identifications of the 1999 collections, and germplasm conservation and survival of the 1998 and 1999 collections. In addition, chromosome counts are provided for 134 accessions from the 1998 and 1999 expeditions, including first reports forS. chomatophilum var. subnivale (2n = 2x = 24),S. megistacrolobum subsp.purpureum (2n = 2x = 24), andS. multiinterruptum var.multiinterruptum f.albiflorum (2n = 2x = 24); we also report the first triploid count of an accession ofS. immite.

Keywords

Solanum sect. Petota 

Resumen

El Perú tiene aproximadamente la mitad de las taxa de papa silvestre descrita, muchas de las cuales aún no están conservadas en bancos genéticos. Este articulo consigna los resultados de la segunda de una serie de cinco expediciones planificadas de recolección en el Perú. Se colectó en los departamentos de Ancash, Huancavelica, La Libertad y Lima, entre el 8 de marzo y el 25 de abril de 1999. Fueron la continuatión de colecciones realizadas en 1998 en el sur del Perú, en los departamentos de Apurímac, Arequipa, Cusco, Moquegua, Puno y Tacna. Recolectamos 101 accesiones de germoplasma, incluyendo las primeras colecciones de germoplasma de las siguientes 22 taxa deSolanum: Solanum amayanum,S. anamatophilum, S. arahuayum (perdida al incrementar germoplasma),S. augustii, S. bill- hookeri, S. cantense, S. chavinense, S. chomatophilum var.subnivale, S. chrysoflorum, S. gracllifrons, S. hapalosum, S. huarochiriense, S. hypacrarthrum, S.jalcae, S. moniliforme, S. multiinterruptumf. longipilosum, S. multiinterruptum var.machaytambinum, S.peloquinianum, S. rhombilanceolatum, S. simplicissimum, S. taulisense (perdida al incrementar germoplasma) yS. wittmackii. Además, colectamos una especie poca colectada:S. hastiforme (tres colecciones). La taxonomía aquí usada es la del planeamiento la expedicién que fue comparada con el nuevo tratamiento de papas silvestres peruanas publicado por Carlos Ochoa en 1999. Este articulo informa sobre la colección y la identificación de nuevas especies de las colecciones de 1999 y de la conservación y supervivencia del germoplasma de las colecciones de 1998 y 1999. Asimismo, se proporciona el conteo de cromosomas de 134 accesiones de las expediciones de 1998 y 1999, incluido el primer reporte deS. megistacrolobum subsp.purpureum (2n = 2x = 24), S.multiinterruptum var.multiinterruptum f.albiflorum (2n = 2x = 24) yS. velardei (2n = 2x =24); también informamos sobre el primer conteo de triploide de una accesión deS. immite.

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Copyright information

© Springer 2001

Authors and Affiliations

  • Alberto R. Salas
    • 1
  • David M. Spooner
    • 2
  • Zósimo Huamán
    • 1
  • Rafael Vinci Torres Maita
    • 3
  • Roel Hoekstra
    • 4
  • Konrad Schüler
    • 5
  • Robert J. Hijmans
    • 1
  1. 1.International Potato Center (CIP)Lima 12Peru
  2. 2.United States Department of Agriculture, Agricultural Research Service, Department of HorticultureUniversity of WisconsinMadisonUSA
  3. 3.Estación Experimental Santa AnaInstitute Nacional de Investigación Agraria (INIA)HuancayoPeru
  4. 4.Plant Research InternationalCentre for Genetic Resources The Netherlands (CGN)AA WageningenThe Netherlands
  5. 5.Genbank Aussensteile Groß LüsewitzInstitut für Pflanzengenetik und Kulturpflanzenforschung (IPK) GaterslebenGroß LüsewitzGermany

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