Diversity and evolution of gene expression in reptilian mitochondria

我们使用代表爬行动物的动物物种进行了RNA-Seq实验。我们发现mRNA的polyA添加位点的分布存在一定的变异，其中一些与mtDNA基因排列的变异相一致。对于物种中的特定mRNA，polyA添加的准确性在一定程度上降低，尽管其原因目前尚不清楚。物种中每种mRNA丰度的相对比例以与多顺反子mRNA从一个控制区到另一个控制区产生的想法一致的方式变化。线粒体中的基因表达系统在爬行动物中具有变化并正在进化。

We conducted RNA-Seq experiments using animal species representing Reptilia. We found some variations in the distribution of polyA-addition sites to mRNAs and some of them are consistent with variations of gene arrangements of mtDNAs. Accuracy of polyA addition was lowered to some extent for particular mRNAs in a species though reasons for this are currently unknown. Relative ratio of each mRNA abundance in a species is changed in a way that is consistent with an idea that polycistronic mRNAs are created from one control region to another. The gene expression system in mitochondria has variations and is evolving in Reptilia.