Pleše, B.; Lukić-Bilela, L.; Bruvo-Mađarić, B.; Harcet, M.; Imešek M, Bilandžija, H.; Ćetković, H. (2012). The mitochondrial genome of stygobitic sponge Eunapius subterraneus: mtDNA is highly conserved in freshwater sponges. In: Maldonado M, Turon X, Becerro MA, Uriz MJ (eds) Ancient Animals, New Challenges. Sponge Research Developments. Hydrobiologia. 687: 49-59.

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Pleše, B.; Lukić-Bilela, L.; Bruvo-Mađarić, B.; Harcet, M.; Imešek M, Bilandžija, H.; Ćetković, H.

2012

687: 49-59

Publication

Proceedings of the 8th International Sponge Conference

Available for editors   [request]

The complete mitochondrial DNA (mtDNA) genome of the Eunapius subterraneus (Porifera, Demospongiae), a unique stygobitic sponge, was analyzed and compared with previously published mitochondrial genomes from this group. The 24,850 bp long mtDNA genome is circular with the same gene composition as found in other metazoans. Intergenic regions (IGRs) comprise 24.7% of mtDNA and are abundant with direct and inverted repeats and palindromic elements as well as with open reading fames (ORFs) whose distribution and homology was compared with other available mt genomes with a special focus on freshwater sponges. Phylogenetic analyses based on concatenated amino acid sequences from 12 mt protein genes placed E. subterraneus in a well-supported monophyletic clade with the freshwater sponges, Ephydatia muelleri and Lubomirskia baicalensis. Our study showed high homology of mtDNA genomes among freshwater sponges, implying their recent split.

DNA
Speciation

Porifera

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