PHENOMENON OF LIFE-SPAN INSTABILITY IN DROSOPHILA-MELANOGASTER .1. NONRANDOM ORIGIN OF LIFE-SPAN VARIATIONS IN SUCCESSIVE GENERATIONS

被引：17

作者：

IZMAYLOV, DM

OBUKHOVA, LK

OKLADNOVA, OV

AKIFYEV, AP

机构：

[1] Institute of Chemical Physics, Russian Academy of Sciences, V-334 Moscow, 117977

来源：

EXPERIMENTAL GERONTOLOGY | 1993年 / 28卷 / 02期

关键词：

LIFE SPAN; IRREGULAR VARIATIONS; SURVIVAL CURVE; DROSOPHILA-MELANOGASTER;

D O I：

10.1016/0531-5565(93)90006-Y

中图分类号：

R592 [老年病学]; C [社会科学总论];

学科分类号：

03 ; 0303 ; 100203 ;

摘要：

The dynamics of life span (LS) and fecundity in Drosophila melanogaster, strain D-32, were analyzed in a series of successive generations. Highly reliable variations in both fitness components were found. On initial inspection the variations would be characterized as random or irregular wherein mean values differed up to threefold. The variance in longevity is greater in females than in males. By use of mathematical procedures we have shown a scale regularity in LS distributions for all generations. Such regularity, in spite of considerable differences in absolute values (mean and maximum LS), suggested that the origin of LS instability is nonrandom.

引用

页码：169 / 180

页数：12

共 26 条

[1]

[Anonymous], 1987, MOL EVOLUTIONARY GEN, DOI DOI 10.7312/NEI-92038

[2] SUCCESSFUL SELECTION FOR INCREASED LONGEVITY IN DROSOPHILA - ANALYSIS OF THE SURVIVAL-DATA AND PRESENTATION OF A HYPOTHESIS ON THE GENETIC-REGULATION OF LONGEVITY [J].