Abstract

Studies into the molecular basis of morphogenesis frequently begin with investigations into gene expression across time and cell type in that organ. One of the most anatomically informative approaches to such studies is the use of in situ hybridization, either of intact or histologically sectioned tissues. Here, we describe the optimization of this approach for use in the temporal and spatial analysis of gene expression in the urogenital system, from embryonic development to the postnatal period. The methods described are applicable for high throughput analysis of large gene sets. As such, ISH has become a powerful technique for gene expression profiling and is valuable for the validation of profiling analyses performed using other approaches such as microarrays.

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