Figure 1.

Photographs of F. vesca floral and fruit tissues used as the source of small RNAs. A, An open flower. B, An image of a developing fruit, illustrating the relationship between achene, the botanical fruit, and receptacle, the accessary fruit. C, Photograph showing a dissected achene, revealing ovary wall and the white seed, normally enclosed inside the ovary wall. 4D and 10D indicate samples harvested at 4 and 10 DPA, respectively.