Fragmentation of the large subunit ribosomal RNA gene in oyster mitochondrial genomes.

ABSTRACT:

Background

Discontinuous genes have been observed in bacteria, archaea, and eukaryotic nuclei, mitochondria and chloroplasts. Gene discontinuity occurs in multiple forms: the two most frequent forms result from introns that are spliced out of the RNA and the resulting exons are spliced together to form a single transcript, and fragmented gene transcripts that are not covalently attached post-transcriptionally. Within the past few years, fragmented ribosomal RNA (rRNA) genes have been discovered in bilateral metazoan mitochondria, all within a group of related oysters.

Results

In this study, we have characterized this fragmentation with comparative analysis and experimentation. We present secondary structures, modeled using comparative sequence analysis of the discontinuous m

SUBMITTER: Milbury CA 

PROVIDER: S-EPMC2996981 | biostudies-literature | 2010 Sep

REPOSITORIES: biostudies-literature