Large Scale Phenotyping Provides Insight into the Diversity of Vegetative and Reproductive Organs in a Wide Collection of Wild and Domesticated Peppers (Capsicum spp.)

摘要: In the past years, diversity of Capsicum has been mainly investigated through genetics and genomics approaches, fewer efforts have made in field plant phenomics. Assessment crop traits with high-throughput methodologies could enhance knowledge phenome, giving at same time a key contribution to understanding function many genes. this study, wide germplasm collection 307 accessions retrieved from 48 world regions, belonging nine species was characterized for 54 plant, leaf, flower fruit traits. Conventional descriptors semi-automated tools based on image analysis colour coordinate detection were used. Significant differences found among accessions, between sweet spicy cultivated types, revealing large diversity. The results highlighted how domestication process continued selection increased variability shape colour. Hierarchical clustering conventional morphological reflected separation basis their phylogenetic relationships. These observations suggested that flow distinct gene pools contributed determine similarity parameters. approach used represents first phenotyping effort spp. aimed broadening domesticated wild peppers. data help select best candidates breeding provide new insight into genetic base pepper.