Are substitution rates and RNA editing correlated?

ABSTRACT:

Background

RNA editing is a post-transcriptional process that, in seed plants, involves a cytosine to uracil change in messenger RNA, causing the translated protein to differ from that predicted by the DNA sequence. RNA editing occurs extensively in plant mitochondria, but large differences in editing frequencies are found in some groups. The underlying processes responsible for the distribution of edited sites are largely unknown, but gene function, substitution rate, and gene conversion have been proposed to influence editing frequencies.

Results

We studied five mitochondrial genes in the monocot order Alismatales, all showing marked differences in editing frequencies among taxa. A general tendency to lose edited sites was observed in all taxa, but this tendency was partic

SUBMITTER: Cuenca A 

PROVIDER: S-EPMC2989974 | biostudies-literature | 2010 Nov

REPOSITORIES: biostudies-literature