[12种果蝇的寿命与生命周期特征及抗逆性的关系]

[The relationship of lifespan with characteristics of life cycle and stress resistance in 12 species of Drosophila].

作者信息

Zemskaya N V, Shaposhnikov M V, Moskalev A A

机构信息

Institute of Biology of Komi Scientific Centre of the Ural Branch of the RAS, Syktyvkar, Komi Republic, 167982, Russian Federation;

Pitirim Sorokin Syktyvkar State University, Syktyvkar, 167001, Russian Federation.

出版信息

Adv Gerontol. 2017;30(2):192-199.

PMID:28575557

Abstract

In the present study, we investigated the relationship of lifespan with different characteristics of the life history (length of the developmental period, imago body weight, fecundity) and stress resistance (response to oxidative stress, hyperthermia, starvation, and ionizing radiation) in flies of 12 species of the Drosophila genus. It was shown, that D. virilis has the highest maximum lifespan, but the lifespan of D. kikkawai was lowest. The investigated features have a positive (length of the developmental period, imago body weight, stress resistance) or negative (fecundity) correlation with species lifespan. Apparently, the observed differences are caused by adaptations of the species to different environmental conditions of their natural habitat, and lifespan is a key indicator of integrative fitness, reflecting the viability and various characteristics of life history and stress resistance.

摘要

在本研究中，我们调查了果蝇属12个物种的寿命与生活史的不同特征（发育期长度、成虫体重、繁殖力）以及抗逆性（对氧化应激、高温、饥饿和电离辐射的反应）之间的关系。结果表明，粗壮果蝇的最大寿命最长，而吉川果蝇的寿命最短。所研究的特征与物种寿命呈正相关（发育期长度、成虫体重、抗逆性）或负相关（繁殖力）。显然，观察到的差异是由物种对其自然栖息地不同环境条件的适应引起的，而寿命是综合适应性的关键指标，反映了生存能力以及生活史和抗逆性的各种特征。