Fig 7. The first three components of a Principal Component Analysis (PCA) of the 23 promising Peruvian accessions.

Accessions are ordinated in response to the biochemical and agromorphological variation between them. Accessions are classified per species: A = C. annuum; B = C. baccatum; C = C. chinense; and F = C. frutescens; and are numbered by the six cluster groups defined by hierarchical clustering. Traits are indicated by abbreviations. ASTA = ASTA extractable color; Cap = capsaicinoids; Fat = fat; Flav = flavonoids; Quer = quercetin; Toc = tocopherols; Hght = Plant height; Flow = 50% plants set flowering; Wdth = fruit width; Wght = fruit weight. Polyphenols and antioxidant capacity score labels overlapped with capsaicinoid score labels and are therefore not shown. Fruit length score labels are not shown because they overlapped with fruit weight and width score labels.