Experimental evolution of aging, growth, and reproduction in fruitflies

被引：249

作者：

Stearns, SC ^{[1
]}

Ackermann, M ^{[1
]}

Doebeli, M ^{[1
]}

Kaiser, M ^{[1
]}

机构：

[1] Univ Basel, Inst Zool, CH-4051 Basel, Switzerland

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 2000年 / 97卷 / 07期

关键词：

life-history evolution; lifespan; age at maturity; body size; Drosophila;

D O I：

10.1073/pnas.060289597

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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.

引用

页码：3309 / 3313

页数：5

共 37 条

[1] Optimality theory, Gompertz' law, and the disposable soma theory of senescence [J].