Wadhwa R, Sharma S P
Arch Gerontol Geriatr. 1985 Jul;4(2):157-62. doi: 10.1016/0167-4943(85)90029-9.
The mean life span of male and female Zaprionus paravittiger reared on corn meal agar medium at 26 +/- 2 degrees C was found to be 35 and 40 days, respectively. The DNA content showed a perpetual decline in both sexes. The RNA content also showed a continuous decline in males while in females a significant leap is found during the first 17 days followed by a steady decline until the 41st day. The study supports the concept that protein synthesis (RNA-DNA) and thus the biological expression during different phases of life, are controlled at the DNA-RNA level.
在26±2摄氏度的玉米粉琼脂培养基上饲养的雄性和雌性副带蚤蝇的平均寿命分别为35天和40天。DNA含量在两性中均呈持续下降趋势。RNA含量在雄性中也呈持续下降趋势,而在雌性中,在前17天出现显著跃升,随后稳定下降直至第41天。该研究支持了这样一种观点,即蛋白质合成(RNA-DNA)以及生命不同阶段的生物学表达在DNA-RNA水平上受到控制。