Experimental evolution of aging, growth, and reproduction in fruitflies.

TitleExperimental evolution of aging, growth, and reproduction in fruitflies.
Publication TypeJournal Article
Year of Publication2000
AuthorsStearns, S C., Ackermann M, Doebeli M, and Kaiser M
JournalProceedings Of The National Academy Of Sciences Of The United States Of AmericaProceedings Of The National Academy Of Sciences Of The United States Of America
Volume97
Pagination3309-3313
Date PublishedApr 28
Accession Number10716732
Abstract

We report in this paper an evolutionary experiment on Drosophila that tested life-history theory and the evolutionary theory of aging. As theory predicts, higher extrinsic mortality rates did lead to the evolution of higher intrinsic mortality rates, to shorter lifespans, and to decreased age and size at eclosion; peak fecundity also shifted earlier in life. These results confirm the key role of extrinsic mortality rates in the evolution of growth, maturation, reproduction, and aging, and they do so with a selection regime that maintained selection on fertility throughout life while holding population densities constant.

Short TitleP Natl Acad Sci Usa