Bioprospecting of Sechium spp. varieties for the selection of characters with pharmacological activity
María Isabel Íñiguez-Luna, Jorge Cadena-Íñiguez, Marcos Soto‐Hernández, Francisco Javier Morales Flores, Moises Cortés-Cruz, Kazuo N. Watanabe, Ryoko Machida-Hirano, Jorge David Cadena-Zamudio
Abstract
Abstract Bioprospecting identifies new sources of compounds with actual or potential economic value that come from biodiversity. An analysis was performed regarding bioprospecting purposes in ten genotypes of Sechium spp., through a meta-analysis of 20 information sources considering different variables: five morphological, 19 biochemical, anti-proliferative activity of extracts on five malignant cell lines, and 188 polymorphic bands of amplified fragment length polymorphisms, were used in order to identify the most relevant variables for the design of genetic interbreeding. Significant relationships between morphological and biochemical characters and anti-proliferative activity in cell lines were obtained, with five principal components for principal component analysis (SAS/ETS); variables were identified with a statistical significance (< 0.7 and Pearson values ≥ 0.7), with 80.81% of the accumulation of genetic variation and 110 genetic bands. Thirty-nine (39) variables were recovered using NTSYSpc software where 30 showed a Pearson correlation (> 0.5) and nine variables (< 0.05), Finally, using a cladistics analysis approach highlighted 65 genetic bands, in addition to color of the fruit, presence of thorns, bitter flavor, piriform and oblong shape, and also content of chlorophylls a and b , presence of cucurbitacins, and the IC 50 effect of chayote extracts on the four cell lines.