Cherevatov O V, Volkov R A
Tsitol Genet. 2011 Mar-Apr;45(2):62-8.
Two length variants of 5S rDNA repeated units were detected in the genome of East European butterfly Melitaea trivia. Both repeat variants contain the 5S rRNA coding region of the same length of 120 bp, but possess the intergenic spacer region (IGS) of different size, 78 and 125 bp, respectively. The level of sequence similarity between the two 5S rDNA variants amounts to 43.9-45.5% in the IGS, whereas the coding region appears to be more conservative. In the IGS, microsatellite sequence motives were found; amplification of these motives could be involved in the evolution of the 5S rDNA.
在东欧蝴蝶小苎麻赤蛱蝶（Melitaea trivia）的基因组中检测到了5S rDNA重复单元的两种长度变体。两种重复变体都包含长度相同为120 bp的5S rRNA编码区，但分别拥有不同大小的基因间隔区（IGS），即78 bp和125 bp。两种5S rDNA变体之间的序列相似性水平在IGS中为43.9 - 45.5%，而编码区似乎更保守。在IGS中发现了微卫星序列基序；这些基序的扩增可能参与了5S rDNA的进化。
