Figure 4
Six4 is required for SGPs to form a unified gonad. Six4131homozygous embryo carrying a Six4-nls-eGFP transgene. The SGP clusters derived from parasegments 11 and 12 (cyan arrows) associate and compact to form a gonad-like structure in an abnormally posterior position. The cluster derived from parasegment 10 (red arrows) remains isolated but these cells also compact to form a tight cluster. Images shown are at the time points indicated and represent maximum projections of data from 26 deconvolved z sections 1 μm apart. These data are also shown in Additional file 6.