Effect of extra Y chromosome on number and fluctuating asymmetry of sternopleural bristles in Drosophila melanogaster.
Effect of extra Y chromosome on number and fluctuating asymmetry of sternopleural bristles in Drosophila melanogaster.
复制标题
额外的 Y 染色体对果蝇胸胸膜刚毛数量和波动不对称性的影响。
DOI：
10.1111/j.1601-5223.1991.tb00322.x
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发表时间：
2008
期刊：
影响因子：
2.7
通讯作者：
P. Portin
中科院分区：
文献类型：
--
作者：
Paula Jokela;P. Portin
在18 ℃和25 ℃两种温度下，在In（1）wm 4/y+Y原种中研究了额外Y染色体对果蝇胸侧刚毛数量和波动不对称性的影响。额外的Y染色体显着增加了胸胸膜刚毛的数量，特别是在侧区的胸胸膜，这阻碍了额外的Y染色体波动不对称的影响的分析。所使用的公式是假设波动的不对称性取决于刚毛的总数的公式。结果发现，额外的Y染色体在18摄氏度时增加了波动的不对称性，但在25摄氏度时减少了不对称性。女性的波动不对称性小于男性。看来，额外的Y染色体对温度有影响，这是最有利于胸侧鬃的发育。
The effect of the extra Y chromosome on the number and fluctuating asymmetry of sternopleural bristles in Drosophila melanogaster was studied at two temperatures, 18 degrees C and 25 degrees C, in the stock In(l)wm4/y+Y. The extra Y chromosome significantly increased the number of sternopleural bristles especially in the lateral areas of the sternopleura, which hampered the analysis of the effect of the extra Y chromosome on fluctuating asymmetry. The formula used was one which assumes that the fluctuating asymmetry is dependent on the total number of bristles. It was found that the extra Y chromosome increased fluctuating asymmetry at 18 degrees C but decreased it at 25 degrees C. There was less fluctuating asymmetry in females than in males. It appears that the extra Y chromosome has an effect on the temperature which is most favourable to the development of the sternopleural bristles.