PJB-2023-242
Diversidad fenotípica y genética de variedades cr
Amelio Eli Morales Morales
Abstract
Cowpea is an important crop for the economic, nutritional and environmental benefits it provides. In Mexico, most of the production is done by farmers in marginal conditions using landraces classified and informally named according to the physical characteristics of the seed and growth habit of the plant. The study of genetic diversity is an important step in the improvement of the species and is achieved by measuring variations in phenotypic and genotypic traits using morphological and molecular markers. To generate useful information for cowpea management and conservation, genetic variability and relationships among 14 landraces cultivated in the Yucatan Peninsula, Mexico, were determined based on morphological and molecular markers (ISSR). The results obtained in this work contribute to the knowledge of genetic diversity in cultivated varieties in the Yucatan Peninsula, by including for the first time varieties collected in a region that had not been explored. Most varieties showed high phenotypic diversity and genetic diversity was higher between varieties than within varieties, with a relatively high level of similarity between genotypes for morphological characters.
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