Genetic dissimilarity of ‘yellow’ and ‘sleep’ passion fruit accessions based on the fruits physical-chemical characteristics
Antonio Carlos de Oliveira; Carlos Bernard Moreno Cerqueira-Silva; Claudio Benicio Cardoso-Silva; Juliana Vieira A Nonato and Ronan Xavier Corrêa
Abstract: The intra- and inter-specific genetic dissimilarity between 14 “yellow’ passion fruit plants and eight ‘sleep’ passion fruit plants were evaluated through nine physical-chemical descriptors, whose measured values were submitted to descriptive (average, standard deviation and variation coefficient) and inferential [univariated (ANOVA, averages and correlations tests) and multivariated (Mahalanobis distance, hierarchical clustering, Singh coefficient and Mantel test)] statistics. Intra- and, especially, inter-specific variability were found among the passion fruit plants (p < 0.001). The total soluble solid, equatorial diameter, total titratable acidity, and fruit weight descriptors presented the highest percentage of relative contribution, totaling 85.2% of the observed divergence. Preferential crossings among genotypes with physical-chemical characteristics of desirable fruits and useful genetic dissimilarity in divergent and convergent crossings were identified. Get the article here. (PDF)