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Learning from Sperm
08 January 2012

Learning from Sperm

One doesn’t normally think of flies as being highly sexually potent. However, fruit fly Drosophila melanogaster produces a single 5cm long sperm (20 times longer than his body), which is passed to the female along with a cocktail of chemicals that render her more compliant. Flies are attractive research models because of their giant chromosomes, cells, sperm and very well documented genome. Stem cells are here pictured at the centre of the fly testis surrounded by germline cells (shown in purple) that can become sperm. Researchers are keen to explore how these two kinds of cells communicate to keep up a continuous production of sperm. In this way, they also hope to understand how new tissues regenerate, which has important medical implications for humans.

Written by Brona McVittie

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BPoD stands for Biomedical Picture of the Day. Managed by the MRC Laboratory of Medical Sciences until Jul 2023, it is now run independently by a dedicated team of scientists and writers. The website aims to engage everyone, young and old, in the wonders of biology, and its influence on medicine. The ever-growing archive of more than 4000 research images documents over a decade of progress. Explore the collection and see what you discover. Images are kindly provided for inclusion on this website through the generosity of scientists across the globe.

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