果蝇的空间繁育

本文介绍了在我国1990年10月发射的返回式卫星生物舱中,成功地观察了微重力环境里果蝇交配、产卵、孵育和羽化的生殖生长过程。8天的近地轨道飞行结果表明:果蝇能在空间正常地繁育后代;微重力没有显著缩短果蝇的寿命。但发现其子代羽化产出数有近三天的停歇期,可认为是微重力的影响。

Space Breeding of Drosophila

Drosophila melanogaster was bred in an auto-opening window system on board a near-earth orbiting recovery satellite for 8 days. The mating, oviposit, haching, growth, pupation and emergence were all right. After 8 days flight, a variety of tests indicated that Drosophila melanogaster can breed normally in space. No significant effect on their life-spans was observed. But there was a stop of 3 days in ovipositing of F1 generation in the space flight group, and microgravity is probably the reason.