The mitochondrial genome of the hexactinellid sponge Aphrocallistes vastus: evidence for programmed translational frameshifting.

BMC Genomics
Rafael D RosengartenStephen L Dellaporta

Abstract

Mitochondrial genomes (mtDNA) of numerous sponges have been sequenced as part of an ongoing effort to resolve the class-level phylogeny of the Porifera, as well as to place the various lower metazoan groups on the animal-kingdom tree. Most recently, the partial mtDNA of two glass sponges, class Hexactinellida, were reported. While previous phylogenetic estimations based on these data remain uncertain due to insufficient taxon sampling and accelerated rates of evolution, the mtDNA molecules themselves reveal interesting traits that may be unique to hexactinellids. Here we determined the first complete mitochondrial genome of a hexactinellid sponge, Aphrocallistes vastus, and compared it to published poriferan mtDNAs to further describe characteristics specific to hexactinellid and other sponge mitochondrial genomes. The A. vastus mtDNA consisted of a 17,427 base pair circular molecule containing thirteen protein-coding genes, divergent large and small subunit ribosomal RNAs, and a reduced set of 18 tRNAs. The A. vastus mtDNA showed a typical hexactinellid nucleotide composition and shared a large synteny with the other sequenced glass sponge mtDNAs. It also contained an unidentified open reading frame and large intergenic space ...Continue Reading

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Citations

Dec 17, 2010·Journal of Molecular Evolution·Angelique H RiepsamenMark Dowton
Aug 2, 2014·Mitochondrial DNA. Part A. DNA Mapping, Sequencing, and Analysis·Yanjie ZhangJian-Wen Qiu
Jul 31, 2013·Molecular Phylogenetics and Evolution·Hans-Jürgen OsigusBernd Schierwater
Oct 4, 2016·Molecular Phylogenetics and Evolution·Marwa Al ArabMatthias Bernt
Jun 29, 2017·Bioinformatics·Emmanuel NoutahiNadia El-Mabrouk
Jan 8, 2021·International Journal of Biological Macromolecules·Qi WangZhengfei Wang
Jan 20, 2021·GigaScience·Sergio Andreu-SánchezGuojie Zhang

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Datasets Mentioned

BETA
EF537577
AM183122

Methods Mentioned

BETA
PCR

Software Mentioned

tRNAscan
BLASTN
ClustalW
Phred Phrap Consed
DOGMA
Blast2
BLAST
SE

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