The mitochondrial genome of the deep-sea glass sponge Lophophysema eversa (Porifera, Hexacinellida, Hyalonematidae).

We reported a nearly complete mitochondrial genome (mitogenome) from the glass spongeLophophysema eversa, the second mitogenome in the order Amphidiscosida and the ninth in the class Hexactinellida. It is 20,651 base pairs in length and contains 39 genes including 13 protein-coding genes, 2 ribosomal RNA subunit genes and 24 tRNA genes. The gene content and order ofL. eversaare identical to those ofTabachnickiasp., the other species with a sequenced mitogenome in Amphidiscosida, except with two additional tRNAs and three tRNA translocations. Thecobgene has a +1 translational frameshift. These results will contribute to a better understanding of the phylogeny of glass sponges. [ABSTRACT FROM AUTHOR]