The USDA’s National Clonal Germplasm Repository in Corvallis houses thousands of species of berries, tree fruits, nuts, hops and more. It’s one of a handful of national centers dedicated to preserving ...

Structure of the U.S. National F. ×ananassa collection as determined using (A.) PCA and K-means clustering, (B.) sparse non-negative matrix factorization sorted by ancestry as determined by LEA, and ...