Cover illustration: The inset cover picture represents a culture of Coffea arabica hairy roots (roots obtained by transformation with Agrobacterium rhizogenes). Marked phenotype variations often observed among hairy root clones of coffee complicate their utilization in functional genomics. Establishment of many long-term clones has allowed variants to be easily identified and discarded. See Alpizar et al. (pp. 929-940).
[Table of Contents]