Abstract
Both male and female zebrafish have a population of germline stem cells that produce gametes throughout the life of the fish. These cells localize to specific regions in the gonads and can be identified because they uniquely express the nanos2 gene, which encodes a conserved regulator of translation. A method is presented here for identifying germline stem cells in the ovary and testis using a combined protocol for whole-mount fluorescent RNA in situ hybridization to detect nanos2 mRNA and immunofluorescence to detect the pan-germ cell marker Vasa.
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