Changepoints of gene regulation networks across the Drosophila melanogaster development. Microarray results for the time courses of Drosophila life cycle  were analysed using ARTIVA. The number of identified changepoints using ARTIVA are shown in blue for each of the 67 time-points. They are compared with the most significant changes identified with the TESLA algorithm , shown in black dashed line. Time-intervals for each developmental stage are represented with the following color-code: pink = Embryo (31 time-points), red = Larva (10 time-points), orange = Pupa (17 time-points), yellow = Adult (8 time-points).