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Revista de Ciencia y Tecnología
versão On-line ISSN 1851-7587
Resumo
BRACCO, Mariana et al. Genetic characterization of maize landraces from Misiones, Argentina. Rev. cienc. tecnol. [online]. 2013, n.20, pp.52-60. ISSN 1851-7587.
Northern aboriginal communities from Argentina cultivate maize landraces for self-sufficiency. Genetic characterization of indigenous germplasm from Misiones Province is extremely limited. To contribute to the knowledge and conservation of the genetic diversity of these native maize landraces and to assess their potential as a reservoir of novel alleles, 467 individuals were evaluated using 15 nuclear microsatellite loci. The results of this study allow to conclude that: 1) landraces from Misiones can be divided into two different gene pools, which are consistent with the type of corn (flints and flours vs. popcorns), these should be regarded as different conservation units; and 2) Misiones landraces represent a significant reservoir of diversity, useful to broaden the genetic base of breeding programs.
Palavras-chave : Genetic diversity; Maize landraces; Germplasm conservation; Microsatellites; Misiones Province.