Figure 1
Pre-imaginal development of Drosophila melanogaster individuals fed on juvenile diets containing different live yeasts or a dry yeast. (a) Relative frequency (in %) of individuals developing into pupa and adult, respectively, as well as respective duration of development (in days) from egg to pupa (empty symbol) or egg to adult (filled symbol) of individuals reared on the four juvenile diets involving one of four alternative yeast treatments, which are represented by different symbols: live Hanseniaspora uvarum (HU; green triangle), live Metschnikowia pulcherrima (MP; magenta square), live Saccharomyces cerevisiae (SC; purple diamond), and dried SC (drySC; cyan circle). Note that adult frequency was calculated based on pupae number. Different italic letters next to the symbol legends indicate significant differences between development curves (Kaplan-Meier procedure with subsequent Log-rank test, and post-hoc multiple comparisons — α = 0.05— with Bonferroni correction). (b) Time (in days) at which 50% pupae (T50Pupa) (c) and 50% adults (T50Adult) had developed. (d) Total number of pupae (e) and adults resulting from 50 eggs raised on each of the four juvenile diets. Box-plots represent the 50% median data (the small horizontal bar indicates the median value, and the white dot represents the mean). The whiskers shown below and above each box represent the first and third quartiles, respectively, and crosses indicate outliers. Different italic letters above whiskers indicate significant differences between means (Kruskal Wallis test with Conover-Iman multiple pairwise comparisons —α = 0.05, with Bonferroni correction — (b): K(3df) = 89.1, p < 10−4; (c): K(3df) = 50.0, p < 10−4; (d): K(3df) = 70.2, p < 10−4; (e): K(3df) = 69.2, p < 10−4). N = 31–39.
