The mitochondrial genomes of the mesozoans <i>Intoshia linei, Dicyema</i> sp. and <i>Dicyema japonicum</i>.

ABSTRACT: The Dicyemida and Orthonectida are two groups of tiny, simple, vermiform parasites that have historically been united in a group named the Mesozoa. Both Dicyemida and Orthonectida have just two cell layers and appear to lack any defined tissues. They were initially thought to be evolutionary intermediates between protozoans and metazoans but more recent analyses indicate that they are protostomian metazoans that have undergone secondary simplification from a complex ancestor. Here we describe the first almost complete mitochondrial genome sequence from an orthonectid, Intoshia linei, and describe nine and eight mitochondrial protein-coding genes from Dicyema sp. and Dicyema japonicum, respectively. The 14,247 base pair long I. linei sequence has typical metazoan

SUBMITTER: Robertson HE 

PROVIDER: S-EPMC6086330 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature