Primordial germ cells (IMAGE)
Caption
Spatial and temporal distribution of primordial germ cells (stained in red) in zebrafish embryos. Normally, with the help of an attractant produced in the environment, the cells migrate in a targeted and coordinated manner through the developing embryo and reach the regions where the sex organs are formed (left). In the absence of the attractant receptor, the cells distribute differently (right). Looking at just one zebrafish, as here, there seems to be no pattern in this.
Credit
Gross-Thebing, Truszkowski, Tenbrinck et al. Sci Adv 2020;6: eabc5546/CC BY-NC
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