Maggini F, Dominicis R I, Salvi G
J Mol Evol. 1976 Dec 30;8(4):329-35. doi: 10.1007/BF01739258.
Competitive hybridization of ribosomal RNAs was used to estimate similarities of nucleotide sequences between species of Angiospermae and Gymnospermae. Similarities have been measured with respect to Cucumis sativus. In Angiospermae the nucleotide sequences are highly conserved except in the species of the family of Compositae, where the percentages of similarity are clearly lower. In the Gymnospermae the lowest similarity has been observed with Torreya californica. A relationship is hypothesized between conservation of rRNA nucleotide sequences and evolutionary position of the species.
利用核糖体RNA的竞争性杂交来估计被子植物和裸子植物物种之间核苷酸序列的相似性。已针对黄瓜测量了相似性。在被子植物中，核苷酸序列高度保守，除了菊科植物，其相似性百分比明显较低。在裸子植物中，与加州榧树的相似性最低。推测rRNA核苷酸序列的保守性与物种的进化位置之间存在关系。
