It has long been understood that a parent’s DNA is the principal determinant of health and disease in offspring. Yet inheritance via DNA is only part of the story; a father’s lifestyle such as diet, being overweight and stress levels have been linked to health consequences for his offspring. This occurs through the epigenome - heritable biochemical marks associated with the DNA and proteins that bind it. But how the information is transmitted at fertilization along with the exact mechanisms and molecules in sperm that are involved in this process has been unclear until now.

“Don’t diss dad” might mean more than making sure not to forget dad on Father’s Day, as researchers look at just how influential environmental exposures and genetic interactions are on dad’s sperm and, as a result, his offspring.
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Published on: 22 Jun 2015