Diversity and principal component analysis of world veg Amaranthus collections

Abstract

Amaranthus (Amaranthus sp L.,) species have high economic and nutritional value, only limited information is available on intra- and interspecific genetic diversity and relationships among the species. The World Veg Amaranthus collection, comprises of more than 800 accessions of 19 species plus accessions with insecure species attribution. Morphological characterization of the 50 accessions based on the AVRDC-GRSU characterization Record sheet to characterize the phenotypic data. Diversity analysis and grouping of Amaranthus species by NJ tree. The principal component analysis (PCA) indicated the most of the 45.7% of the variation were more explained by ten principal components PC1, PC2, PC3, PC4, PC5, PC6, PC7, PC8, PC9, PC10. From this major 22% of the variation were explained by PC1 and PC2. The present study focused on to confirm the presence of variability and diversity analysis in World Veg Amaranthus collections and this could be exploited in the genetic improvement, species identification by using markers, and germplasm conservation.