Open Access Research article

A comparative study of nemertean complete mitochondrial genomes, including two new ones for Nectonemertes cf. mirabilis and Zygeupolia rubens, may elucidate the fundamental pattern for the phylum Nemertea

Hai-Xia Chen12, Shi-Chun Sun2, Per Sundberg1, Wei-Cheng Ren3 and Jon L Norenburg4*

Author Affiliations

1 Department of Biological and Environmental Sciences, University of Gothenburg, PO Box 463, SE-405 30 Gothenburg, Sweden

2 Institute of Evolution & Marine Biodiversity, Ocean University of China, 5 Yushan Road, Qingdao 266003, China

3 Department of Rheumatology and Inflammation Research, Sahlgrenska Academy, University of Gothenburg, PO Box 480, SE-405 30, Sweden

4 Department of Invertebrate Zoology, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560-0163, USA

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BMC Genomics 2012, 13:139  doi:10.1186/1471-2164-13-139

Published: 17 April 2012

Additional files

Additional file 1:

Figure S1. Mitochondrial gene order (protein-coding genes and rRNAs only) of Nemertea and selected lophotrochozoan species and the putative bilaterian ground pattern (according to [39]). Gene segments are not drawn to scale. All genes are transcribed from left-to-right except those in gray, which are transcribed from right to left. The adjacencies nad6/cob and atp8/atp6 are underlined. The translocation of nad2 in the heteronemerteans and hoplonemerteans is highlight by *. Gene orders according to the following references: Cephalothrix [6,8], Lineus [7], Paranemertes [8], Terebratulina [40], Katharina [14], Phoronis [41], Perionyx [42], Urechis [43], Sipunculus [44].

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Additional file 2:

Table S1. Pairwise breakpoint distance matrix of mitochondrial gene orders of nemerteans, the bilaterian ground pattern and six other lophotrochozoans*

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Additional file 3:

Table S2. Pairwise reversal distance matrix of mitochondrial gene orders of nemerteans, the bilaterian ground pattern and six other lophotrochozoans*

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