Dr. Waterston worked jointly with Dr. John Sulston to commandeer the initial sequencing of the C.elegans worm genome in 1989. This culminated in the first published genome of a multicellular organism - C. elegans - 9 years later, in 1998. Concurrently, Dr. Waterston & Dr. Sulston played key roles in the sequencing of the first human genome. In fact, Dr. Waterston's research group contributed more of the finished human genome sequence than any other American laboratory.