Development of research on aging and life extension in C. elegans can be reviewed in a chronologically-ordered literature. Figures, such as lifespan and age-specific survival, are provided. Information on the phenotypic expression of genes includes a gene list, a genotype list, and a strain list. The lists contain names of genes which may or may not be responsible for life extension but occur in nematode strains for which aging and longevity data are available. The genotype of the strain and the year of the first publication for the gene are identified.
Some strains have data on the number of eggs produced.
Every record of a gene has a citation and is supplied with the URL address to access the C. elegans genetic and genomics database on the world wide web. Environmental influences on lifespan can be analyzed in the third main section. The user can review information on longevity response of C. elegans genotypes to variable environments. The information is retrieved by clicking the Environmental effect button on every strain page. By clicking buttons, the user moves around in the database, to and from all sections and pages, and connects to URL addresses on the world wide web.