Di Giulio M
International Institute of Genetics and Biophysics, CNR, Naples, Italy.
J Theor Biol. 1992 Nov 21;159(2):199-214. doi: 10.1016/s0022-5193(05)80702-7.
Data and arguments are given in favour of the hypothesis that the primitive tRNA molecule may have originated from a direct duplication event involving one of the two halves of the tRNA molecule. It seems that a molecule capable of assuming a hairpin structure was involved as a precursor in this duplication. The two halves of the present tRNAs could, therefore, be considered as paralogous.
文中给出了数据和论据，支持原始tRNA分子可能起源于涉及tRNA分子两半之一的直接复制事件这一假说。似乎一个能够呈现发夹结构的分子作为前体参与了这次复制。因此，当前tRNA的两半可被视为旁系同源物。
