SILENCING WORK. “Once cell fates are specified within the gametophytes, the current data suggest that “information flow” reverses with the companion cells of the pollen and embryo sac acting to silence transposable elements in the germ cells. Presumably, this would act to reinforce the default systems that repress transposable element activity in somatic cells, perhaps because of an increased requirement for genome integrity in the gametes caused by the gametic chromatin being differently packed from that of somatic cells.”
http://www.sciencedirect.com/science/article/pii/S1534580713000427
linkedin post 2022-06-29 05:12:48
Nigel Fleming
September 21, 2022