There's room in our gardens for fall color, too, from shrubs. Berberis thunbergii 'Rose Glow' is a barberry that grows to about 5 feet high and 4 feet wide. The small yellow flowers in spring are ...

We also used a virus to silence the expression of a closely related gene in roses, yielding a rose without thorns. In natural settings, prickles defend plants ... engineered to glow in the dark.

We also used a virus to silence the expression of a closely related gene in roses, yielding a rose without thorns. In natural settings, prickles defend plants against grazing herbivores.

As any avid gardener will tell you, plants with sharp thorns and prickles ... of a closely related gene in roses, yielding a rose without thorns. Today, DNA modification technologies are no ...