Aging in the Drosophila ovary: Contrasting changes in the expression of the piRNA machinery and mitochondria but no global release of transposable elements

Evolutionary theory indicates that the dynamics of aging in the soma and reproductive tissues may be distinct. This difference arises from the fact that only the germline lineage establishes future generations. In the soma, changes in the landscape of heterochromatin have been proposed to have an important role in aging.