Article ID | Journal | Published Year | Pages | File Type |
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5920746 | Molecular Phylogenetics and Evolution | 2011 | 6 Pages |
We present the almost complete (16,007Â bp) mitochondrial genome of a Colossendeis megalonyx specimen from the Southern Ocean and discuss gene order and tRNA structure in a comparative phylogenetic context. Our data suggest a basal position of the colossendeid lineage corroborating earlier phylogenetic studies but disagreeing with results of a recently published study that supported a highly derived sister-group relationship of Colossendeidae and Nymphonidae. Our results, together with BLAST searches and phylogenetic comparisons, indicate that the specimen presented as Colossendeis sp. in a series of recent studies had been misidentified. It has now been identified as a nymphonid species.
Graphical abstractDownload full-size imageResearch highlights⺠New mitogenome of pycnogonid Colossendeis megalonyx is presented. ⺠Very basal, typical arthropod groundplan gene order and tRNA structure. ⺠Conflict to derived genome order found for Colossendeis sp. (Masta et al. 2010). ⺠Conclusion: Colossendeis sp. (Masta et al. 2010) is misidentified Nymphon species. ⺠The results of the mitogenome of Colossendeis corroborate actual phylogenies.