Mitochondrial COI-NC-COII sequences in talitrid amphipods (Crustacea).
Mitochondrial (mt) sequences from cytochrome oxidase subunit I to the subunit II gene (COI, COII) were analysed in crustacean talitrid amphipods. Species of the genera Orchestia, Talitrus and Talorchestia from the Mediterranean-East Atlantic area were examined. The expected tRNALeu-UUR gene was not revealed between COI and COII. Instead, a short (35-48 bp) noncoding (NC) AT-rich (ca. 90%) region with putative stem loops was found. Here, we discuss briefly the NC region and explore its potential involvement in generating this novel rearrangement. The COI-NC-COII organization, as well as preliminary phylogenetic results, based on both COI-COII nucleotide and amino-acid sequence indicate monophyly of these talitrid taxa.
Davolos
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Division of Biodiversity and Ecology, Biomedical Sciences Building, University of Southampton, Bassett Crescent East, Southampton, UK. davolos.it@libero.it
Maclean
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D033304:Amphipoda / Q000235:genetics*; D000818:Animals; D003062:Codon / Q000235:genetics; D004272:DNA, Mitochondrial / Q000235:genetics*; D003576:Electron Transport Complex IV / Q000235:genetics*; D005815:Genetic Code; D007438:Introns / Q000235:genetics*; D008522:Mediterranean Sea; D010802:Phylogeny; D012356:RNA, Transfer, Leu
D003062:Codon; D004272:DNA, Mitochondrial; D012356:RNA, Transfer, Leu; D003576:Electron Transport Complex IV