The Huck Institutes of the Life Sciences

Agricultural parasite takes control of host plant’s genes

Dodder, a parasitic plant that causes major damage to crops in the U.S. and worldwide every year, can silence the expression of genes in the host plants from which it obtains water and nutrients.
http://news.psu.edu/story/499456/2018/01/03/research/agricultural-parasite-takes-control-host-plant%E2%80%99s-genes