Evolution of the galaxy minor merger fraction up to z ∼ 6 from MUSE deep fields, for primary galaxies with a stellar mass range of ∼ 10⁹ − 10¹¹ M_⊙. Left: as in Fig. 11; different symbols show the results from the four regions individually. Right: red squares are estimates of the combined minor merger fraction from the whole MUSE data set and over the whole stellar mass range ∼ 10⁹ − 10¹¹ M_⊙. Using the median value of stellar mass in each redshift bin as a separation limit (∼ 10¹⁰ M_⊙, see Table 2), the purple and golden triangles correspond to the minor merger fraction for low-mass and massive galaxies, respectively. As in Fig. 11, filled and open symbols correspond to the fractions computed without and with galaxy members of the cluster and group for 0.2 ≤ z ≤ 1, respectively. Cyan points are estimates from previous spectroscopic minor pair counts (López-Sanjuan et al. 2011, 2012).