Leipoldt M, Kellner M
Comp Biochem Physiol B. 1984;79(2):181-5. doi: 10.1016/0305-0491(84)90011-7.
Ribosomal RNA of the diploid amphibian species Hyla chrysoscelis and Odontophrynus americanus is structurally modified by hidden breaks. Phylogenetically polyploid related species like the tetraploid Hyla versicolor, the tetraploid Odontophrynus americanus and the octoploid Ceratophrys ornata do not show hidden breaks in ribosomal RNA. Structural modifications of rRNA molecules in diploid amphibians has no detectable effect on the ribosomal activity in vitro.
二倍体两栖动物物种金黄雨蛙(Hyla chrysoscelis)和美洲齿蟾(Odontophrynus americanus)的核糖体RNA在结构上因隐蔽断裂而发生修饰。在系统发育上与多倍体相关的物种,如四倍体变色雨蛙(Hyla versicolor)、四倍体美洲齿蟾和八倍体饰纹角花蟾(Ceratophrys ornata),其核糖体RNA中未显示出隐蔽断裂。二倍体两栖动物中rRNA分子的结构修饰对体外核糖体活性没有可检测到的影响。