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Acta Agronómica

Print version ISSN 0120-2812

Abstract

RESTREPO S, Javier A.  and  VALLEJO C, Franco A. Molecular characterization of colombian introductions of squash Cucurbita moschata. Acta Agron. [online]. 2008, vol.57, n.1, pp.9-17. ISSN 0120-2812.

The molecular characterization was carried out by means of the amplified fragment length polymorphism (AFLP) of 121 introductions of C. moschata, of the germoplasm bank of the Vegetables Research Program of the Universidad Nacional de Colombia campus Palmira, originating from eight departments of Colombia . The AFLP data were evaluated utilizing multiple correspondence analysis (MCA), genetic distance, genetic analysis with the TFPGA program and the UPGMA cluster analysis. The genetic diversity of these introductions was high and was according with the morphoagronomic diversity previously studied. The Fst values indicated that exist genetic structure between most of the introductions. The most of the genetic variation between the introductions corresponded to variations between them inside each department.

Keywords : Squash; Cucurbita moschata; genetic diversity; genetic structure; molecular markers AFLP.

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