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Molecular mechanisms of gene regulation during Drosophila spermatogenesis

School of Biosciences, Cardiff University, Museum Avenue, Cardiff CF10 3AX, UK

Correspondence should be addressed to H White-Cooper; Email: white-cooperh{at}cf.ac.uk

The differentiation of sperm from morphologically unremarkable cells into highly specialised free-living, motile cells requires the co-ordinated action of a very large number of gene products. The expression of these products must be regulated in a developmental context to ensure normal cellular differentiation. Many genes essential for spermatogenesis are not used elsewhere in the animal, or are expressed elsewhere, but using a different transcription regulation module. Spermatogenesis is thus a good system for elucidating the principles of tissue-specific gene expression, as well as being interesting in its own right. Here, I discuss the regulation of gene expression during spermatogenesis in Drosophila, focussing on the processes underlying the expression of testis-specific genes in the male germline.