黑腹果蝇寿命不稳定性现象：I. 连续世代中寿命变异的非随机起源。

Phenomenon of life span instability in Drosophila melanogaster: I. Nonrandom origin of life span variations in successive generations.

作者信息

Izmaylov D M, Obukhova L K, Okladnova O V, Akifyev A P

机构信息

Institute of Chemical Physics, Russian Academy of Sciences, Moscow.

出版信息

Exp Gerontol. 1993 Mar-Apr;28(2):169-80. doi: 10.1016/0531-5565(93)90006-y.

DOI:10.1016/0531-5565(93)90006-y

PMID:8325353

Abstract

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.

摘要

在一系列连续世代中分析了黑腹果蝇D-32品系的寿命（LS）和繁殖力动态。发现这两个适合度组分都存在高度可靠的变异。初步观察时，这些变异的特征是随机或不规则的，其中平均值相差高达三倍。雌性的寿命方差大于雄性。通过数学方法，我们已证明所有世代的LS分布具有尺度规律性。尽管绝对值（平均和最大LS）存在相当大的差异，但这种规律性表明LS不稳定性的起源是非随机的。