Contents

14 December 2001
Vol 294, Issue 5550

About The Cover

Cover image expansion

COVER A transgenic corn plant emerging from undifferentiated corn tissue (callus). Agrobacterium tumefaciens, a bacterium that naturally transfers DNA to plants, was used to introduce a gene conferring herbicide tolerance into the plant. The genome sequence of A. tumefaciens C58 is reported by Goodner et al. and Wood et al. in this issue. 2317 [Photo: Santiago Navarro and Mike Mann, Monsanto]