Abstract
Genetic variation was examined by multivariate analysis among cultivated and wild Carica papaya from five Central American countries (Mexico, Belize, Guatemala, Honduras, and Costa Rica), together with cultivated materials from Malaysia, Thailand, Hawaii and South America (Venezuela and Peru) based on allele frequencies in each country. Five seedlings from each accession were analyzed for isozyme variability using starch gel electrophoresis. Aconitase (ACO), isocitrate dehydrogenase (IDH), malate dehydrogenase (MDH), phosphoglucoisomerase (PGI), phosphoglucomutase (PGM), triosephosphate isomerase (TPI) and alcohol dehydrogenase (ADH) gave consistent and polymorphic banding patterns. cluster and principal component analyses indicated that materials outside of Central America differed from those in Central American countries due to the presence of wild papaya accessions in Central America.
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