Effects of extreme temperatures on phenotypic variation and developmental stability in Drosophila melanogaster and Drosophila buzzatii
Effects of extreme temperatures on phenotypic variation and developmental stability in Drosophila melanogaster and Drosophila buzzatii
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极端温度对果蝇和果蝇表型变异和发育稳定性的影响
DOI：
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发表时间：
1997
期刊：
影响因子：
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通讯作者：
O. Lazebny
中科院分区：
文献类型：
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作者：
A. Imasheva;V. Loeschcke;L. Zhivotovsky;O. Lazebny
研究了应激和非应激饲养温度对黑腹果蝇（Drosophila melanogasteria）和蜂蝇（buzzatii） 4个数量性状（胸长、翅长、胸胸膜毛羽数、羽绒枝数）表型变异和后3个性状发育稳定性（波动不对称）的影响。在胁迫温度下，两种植物的表型变异和不对称性均呈上升趋势；在波动不对称中，这种效应更为明显。除胸胸膜毛羽数外，所有性状在胁迫下均表现出表型变异的增加。物种响应比较表明，黑腹蠓的变异增加幅度略高于buzzatii。
The effect of stressful and nonstressful rearing temperatures on phenotypic variation of four quantitative characters (thorax length, wing length, number of sternopleural chaetae, number of arista branches) and on developmental stability (fluctuating asymmetry) of the three latter characters was estimated in twoDrosophilaspecies:Drosophila melanogasterandDrosophila buzzatii. In both species, a general trend for increasing of phenotypic variation and fluctuating asymmetry at stress temperatures was observed; in fluctuating asymmetry, this effect was more pronounced. An increase of phenotypic variation under stress was shown for all characters examined except sternopleural chaeta number inD. buzzatii. Comparison of species responses suggests that the increase of variation inD. melanogasterwas somewhat higher than inD. buzzatii.