Evolution + Development

Whitehead Institute Symposium, "Harnessing the Untapped Power of Plants for Human Health", allowed two leaders in plant biology, Whitehead Members Mary Gehring and Jing-Ke Weng, to provide a window into their research and to describe how plants are a major gateway to the future of biomedicine and biotechnology. In this video, Gehring discusses "Beyond the Gene: Epigenetic Control of Plant Development", which describes mechanisms that control gene expression without altering the DNA's sequence.

Researchers at Whitehead Institute have uncovered how small changes in the fish Argonaute (Ago) protein, an RNA slicing protein, that happened in its lineage an estimated 300 million years ago greatly diminished the efficiency of RNAi in these animals, while another ancestral feature, in a critical pre-microRNA, was retained that enabled the microRNA to still be produced despite the fish’s impaired Ago protein.