Molecular characterization of colombian introductions of squash Cucurbita moschata

The molecular characterization was carried out by means of the amplified fragment length polymorphism (AFLP) of 121 introductions of C. moschata, of the germplasm bank of the Vegetables Research Program at the Universidad Nacional de Colombia campus Palmira, originating from eight Colombian departments. The AFLP data were evaluated using 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 accordingly to morpho-agronomic diversity, previously studied. The F_ST values indicated that exists genetic structure among most of the introductions. Most of the genetic variation among introductions was attributed to variations between individuals within each location.

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.